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12. Don't throw that old____________ away. We can decorate it to make a flower vase.      A. can                             B. glass                                C. bottle                               D. paper13. I think you should____________ to save water.      A. have a bath                B. go swimming                   C. heat water                        D. have a shower14. We should____________ to prevent pollution.      A. use reusable bags      B. plant more trees               C....
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12. Don't throw that old____________ away. We can decorate it to make a flower vase.

      A. can                             B. glass                                C. bottle                               D. paper

13. I think you should____________ to save water.

      A. have a bath                B. go swimming                   C. heat water                        D. have a shower

14. We should____________ to prevent pollution.

      A. use reusable bags      B. plant more trees               C. turn off the lights             D. save electricity

15. We will buy____________ for our class

      A. water bottles              B. recycling bins                  C. energy-saving lights        D. refillable pencils

16. If we plant more trees in the schoolyard, the school will become a ____________ place.

      A. darker                        B. dirtier                               C. greener                             D. more polluted

17. If we all use ____________ bags, we will help the environment.

      A. new                           B. cheap                               C. reusable                           D. reduced

18. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.

      A. to                               B. of                                     C. in                                     D. at

19. These three Rs ____________ reduce, reuse, and recycle.

      A. stand up                     B. stand for                          C. ask for                             D. means

20. Because plastics bags are very hard to ____________, they will cause pollution.

      A. dissolve                     B. wrap                                C. tear                                  D. collect

21. If there is a rubbish bin in every class, the classroom will become ____________.

A. harmful                            B. dirtier                               C. cleaner                             D. lighter\

giúp mình nhanh vs ạ

 

3
24 tháng 4 2022

12. Don't throw that old____________ away. We can decorate it to make a flower vase.

      A. can                             B. glass                                C. bottle                               D. paper

13. I think you should____________ to save water.

      A. have a bath                B. go swimming                   C. heat water                        D. have a shower

14. We should____________ to prevent pollution.

      A. use reusable bags      B. plant more trees               C. turn off the lights             D. save electricity

15. We will buy____________ for our class

      A. water bottles              B. recycling bins                  C. energy-saving lights        D. refillable pencils

16. If we plant more trees in the schoolyard, the school will become a ____________ place.

      A. darker                        B. dirtier                               C. greener                             D. more polluted

17. If we all use ____________ bags, we will help the environment.

      A. new                           B. cheap                               C. reusable                           D. reduced

18. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.

      A. to                               B. of                                     C. in                                     D. at

19. These three Rs ____________ reduce, reuse, and recycle.

      A. stand up                     B. stand for                          C. ask for                             D. means

20. Because plastics bags are very hard to ____________, they will cause pollution.

      A. dissolve                     B. wrap                                C. tear                                  D. collect

21. If there is a rubbish bin in every class, the classroom will become ____________.

A. harmful                            B. dirtier                               C. cleaner                             D. lighter

24 tháng 4 2022

12. Don't throw that old____________ away. We can decorate it to make a flower vase.

      A. can                             B. glass                                C. bottle                               D. paper

13. I think you should____________ to save water.

      A. have a bath                B. go swimming                   C. heat water                        D. have a shower

14. We should____________ to prevent pollution.

      A. use reusable bags      B. plant more trees               C. turn off the lights             D. save electricity

15. We will buy____________ for our class

      A. water bottles              B. recycling bins                  C. energy-saving lights        D. refillable pencils

16. If we plant more trees in the schoolyard, the school will become a ____________ place.

      A. darker                        B. dirtier                               C. greener                             D. more polluted

17. If we all use ____________ bags, we will help the environment.

      A. new                           B. cheap                               C. reusable                           D. reduced

18. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.

      A. to                               B. of                                     C. in                                     D. at

19. These three Rs ____________ reduce, reuse, and recycle.

      A. stand up                     B. stand for                          C. ask for                             D. means

20. Because plastics bags are very hard to ____________, they will cause pollution.

      A. dissolve                     B. wrap                                C. tear                                  D. collect

21. If there is a rubbish bin in every class, the classroom will become ____________.

A. harmful                            B. dirtier                               C. cleaner                             D. lighter\

9 tháng 3 2016

số 18 gồm 18  đơn vị

Số 12 gồm 12 đơn vị

3 tháng 12 2017

hiệu của chiều dài và chiều rộng là:   12+12=24(cm)                                                                                                                                         chiều dài là:(64+12):2=38(cm)                                                                                                                                                                              chiều rộng là:(64-12):2=26(cm)   

14 tháng 12 2016

Sau 3 ngày thì còn lại :

  12 - 3 = 9 ( ngày )

Đủ ăn trong :

 40 x 9 : ( 40 + 5 ) = 8 ( ngày )

đ/s : 8 ngày

14 tháng 12 2016

5 ngày. LG đẻ đăng sau nha

12 tháng 9 2017

Số hạng thứ nhất sau khi giảm là: 12 -12 = 0

Số hạng thứ hai sau khi giảm là: 6 -6 = 0

tổng mới là: 0+0=0

11 tháng 3 2017

Thừa số thứ nhất là:540/12=45

Thừa số thứ hai là:3240:45=75

                         Đáp số: TS1:45

                                     TS2=75

11 tháng 3 2017

Thừa số thứ nhất là:

11 tháng 3 2017

vì khi giảm thua số đi 12 đơn vị thì tích giam đi bang 12 lan thua số thứnhất vậy thừa số thứ nhat là 540 : 12 = 45

thừa số thứ hai là 3240:45 = 72

đáp số 72 ; 45

11 tháng 3 2017

TS thứ 1 là:

               540:12=45

TS thứ 2 là:

              3240:45=72

                         ĐS:TS thứ 1:45

                              TS thứ 2:72

1 tháng 10 2014

(a + 36) : (b+12) = a : b

\(\frac{a+36}{b+12}=\frac{a}{b}=\frac{\left(a+36\right)-a}{\left(b+12\right)-b}=\frac{36}{12}=3\)

Vậy a : b = 3

Thương là 3