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1. My sister often looks at herself in the mirror.
2. Mark made himself a sandwich.
3. This refrigerator defrosts itself.
4. Hoa and I ourselves saw that accident yesterday.
5. Did you pay for yourself?.
6. The children can look after themselves for a few days.
7. Please help me. I can't do it myself.
8. Take care of myself ?.
9. He was very surprised when he looked himself in the mirror.
10. I don't like going to the cinema with other people. I prefer going by myself.
11. The child had no bothers or sisters, so she often had to play by herself.
12. I'm afraid that the children are going to cut themselves on the broken glass.
13. We had a great time in London together. We really enjoyed ourselves.
14. "Can I take another biscuit?"-Of course. Help myself.
15. Don't worry about Linh and me. We can look after ourselves.
16. I gave them a key to our house so that they could let themselves in.
17. Phuong had a great holiday. She enjoyed herself.
18. Please try and understand how I feel. Put yourself in my position.
19. I taught myself to play the guitar. I have never had lessons.
20. An elephant hurt itself when I tried to get out of the zoo yesterday.
21. I don't need any help. I can take care of myself.
22. Sarah and I didn't enjoy ourselves at the disco last night.
23. This exercise isn't very difficult. Do it yourself.
24. My brother can repair the bicycle himself.
1. My sister often looks at herself in the mirror.
2. Mark made himself a sandwich.
3. This refrigerator defrosts itself.
4. Hoa and I ourself saw that accident yesterday.
5. Did you pay for yourself?.
6. The children can look after themselves for a few days.
7. Please help me. I can't do it myself.
8. Take care of myself?.
9. He was very surprised when he looked himself in the mirror.
10. I don't like going to the cinema with other people. I prefer going by myself.
11. The child had no bothers or sisters, so she often had to play by itself.
12. I'm afraid that the children are going to cut themselves on the broken glass.
13. We had a great time in London together. We really enjoyed ourselves.
14. "Can I take another biscuit?"-Of course. Help yourself.
15. Don't worry about Linh and me. We can look after ourselves.
16. I gave them a key to our house so that they could let themselves in.
17. Phuong had a great holiday. She enjoyed hershelf.
18. Please try and understand how I feel. Put yourself in my position.
19. I taught myself to play the guitar. I have never had lessons.
20. An elephant hurt itself when I tried to get out of the zoo yesterday.
21. I don't need any help. I can take care of myself.
22. Sarah and I didn't enjoy ourselves at the disco last night.
23. This exercise isn't very difficult. Do it yourself.
24. My brother can repair the bicycle himself.
#)Giải :
Nếu thêm 30kg gạo tẻ và bớt 30kg gạo nếp thì hiệu giữa số gạo tẻ và số gạo nếp tăng thêm là :
30 + 30 = 60 ( kg )
Hiệu giữa số gạo tẻ và gạo nếp lúc này là :
420 + 60 = 480
Ta có sơ đồ :
Gạo tẻ : /-----------------/-----------------/-----------------/-----------------/
Gạo nếp : /-----------------/
Hiệu số phần bằng nhau là :
4 - 1 = 3 ( phần )
Số gạo nếp là :
480 : 3 x 1 + 30 = 190 ( kg )
Số gạo tẻ là :
190 + 420 = 610 ( kg )
Đ/số : 610 kg gạo tẻ .
#~Will~be~Pens~#
Số học sinh nếu xếp hàng 12; 15; 18 đều dư 7.Gọi số học sinh là a.Ta có:
(a - 7) chia hết cho 12; 15; 18 hay (a - 7) = BC(12; 15; 18)
350 (kí hiệu"nhỏ hơn hoặc bằng") a (kí hiệu "nhỏ hơn hoặc bằng") 400
Ta phân tích 12; 15; 18 ra thừa số nguyên tố:
12 = 22 . 3
15 = 3 . 5
18 = 2 . 32
BCNN (12; 15; 18) =22 . 32 . 5 = 180
BC( 12; 15; 18) = B(180) = {180; 360; 540; ...}
=> a = {187; 367; 547;...}
Mà: 350 (kí hiệu"nhỏ hơn hoặc bằng") a (kí hiệu "nhỏ hơn hoặc bằng") 400 nên a = 367
Vậy số học sinh tham gia diễu hành là: 367 học sinh.
Học tốt nhé ~!!!!!
A
b