B nha bạn

A.wrapped          B.fixed                  C.polished                D.crooked

ttiiikk nha

1, What do farmers often use for fertilizing their fields?

2, When will they carry out this project?

3, Who will she invite to her party?

4, How many medical experts do they employ to find out vaccine?

5, How often does Nhu praces speaking English at club?

1.       She fell_______ her bike and hit her head_______ the road. OFF....ON

2.       What is the address_______ the school? OF

3.       The ambulance will be there_______ about ten minutes. IN

4.       Don’t overheat the victim_______ blankets or coats. OF

5.       Cover the burned area_______ a thick sterile dressing. WITH 

6.       Thank you very much _______ the flowers you sent to me. FOR

7.       You should ease the pain_______ ice or cold water packs. WITH 

8.       The victim should drink a cup_______ tea when reviving. OF

9.       Your flowers will really help to cheer me_______. UP

10.  I’ll phone you_______ Saturday afternoon. ON

11.  Calm _______. Could you please tell me what happened? DOWN

12.  The hospital will send an ambulance to the scene _______10 minutes. IN

13.  Thank you very much _______the present you sent to me. FOR

14.  Will you come to my house _______the weekend? AT

15.  Although her legs were broken, she can go _______work. TO

16.  You must get _______early so as not to be late _______school.    UP....FOR

17.  Because of the heavy rain, we didn’t want go _______last night. OUT

18.  Remember not to overheat the victim _______blankets or coats. OF

19.  It’s very kind _______ you to help me. OF

20.  Mai is standing _______the chair next _______the table. ON...TO

Chọn đáp án A

A.because

ab(b - a) - bc(b - c) - ac(c - a)

= ab² - a²b - b²c +  bc² + ac(a - c)

= b²(a - c) - b(a² - c²) + ac(a - c)

= b²(a - c) - b(a - c)(a + c) + ac(a - c)

= (b² - ab - bc + ac)(a - c)

= [b(b - a) - c(b - a)](a - c)

= (b - c)(b -a)(a - c)

- Phủ định:

a. Lan doesn't walk to school everyday

b. Ba didn't do his homework last night

c. They haven't bought a new house for 5 months

- Nghi vấn:

a. Does Lan walk to school everyday?

b. Did Ba do his homework last night?

c. Have they bought a new house for 5 months?

chúc bạn hok tốt

study well.Please be my friend.

1. After /many /eperiments /finally /first /successfull /flight /made /by /Wright brothers.

\(\rightarrow\)\(\text{After many eperiments , finally the first successfull flight was made by the Wright brothers.}\)

2. My grandfather /used /tell /stories /until /we /fall /asleep.

\(\rightarrow\)\(\text{My grandfather used to tell us stories until we fell asleep. }\)

3.  I /used /collect /shells /when /be /kid.

\(\rightarrow\)\(\text{I used collect shells when I was a kid . }\)

Hok tốt !

Mk nghĩ câu 3 là used to chứ, nhưng cảm ơn bn nha!

- Đề bài là gì v?

1. Life in the country is definitely changing  the better.

2. Watching  television is the most popular kind of enertainment nowadays.

3. After/ many/ experiments/ finally/ first/ successfull/ fight/ make/ by/ Wringt brothers.

1.On Saturdays, I'm looking at new information and sometimes change the chart

2. It's cold today, but it doesn't snow at the moment

3.She's doing the afternoon weather preports on tv every week

4. The student in this groud collect 10 arles up to now

5. How many times did you meet her since last year?

còn caau1 nữa bn ơi, với sửa giúp mik vs. cảm ơn bn nhiều