We /know/him/since/ children

=> We have known him since we were children.

She /say / enjoy/vietnamese food/ very much

=> She said she enjoyed Vietnamese food very much.

Mai /good/at math/than / Lan Anh

=> Mai is better at math than Lan Anh.

-(6-4+2)-(12+4-6)-(7-5)

= - 4 - 12 - 4 +6 - 7+5

=(4+6+5)-(6+2+12+4+7)

= - 16

Gọi số cần tìm là a(a thuộc N*)

Vì a chia hết 3;4;5 dư 2;3;4

=>a+1 chia het cho 3;4;5

=>a+1 thuộc BC(3;4;5)

Mà a là số nhỏ nhất=>a la BCNN(3;4;5)

Ta có:3=3

         4=2²

         5=5

=>BCNN(3;4;5)=3.2².5=60

=>a+1=60

=>a=60-1

=>a=59

V) Rewrite these following sentences so that their meaning are the same as the first ones:

26. The storm destroyed some big trees on the street yesterday.

=> Some big trees on the street were destroyed by the storm yesterday.

27. Tom said “ I must leave now. “

=> Tom said he had to leave then.

28. They built our school 2 years ago.

=> Our school was built 2 years ago.

29. Lan and Mai don’t know how to make a cake.

=> I wish Lan and Mai knew how to make a cake.

30. “ Do you have many friends ? “

=> She asked me if I had many friends.

31. “ What country do you come from ? “ said Bill.

=> Bill asked me what country I came from.

\(126\)

= -6 + 4 - 2 - 12 - 4 + 6 - 7 + 5 = (4 + 6 + 5) - (6 + 2 + 12 + 4 + 7) = 15 - 31 = -16

I) Choose the word whose bold part is pronounced differently from the others in each group:

1. A. mention B. inspiration C. federation D. question

2. A. climate B. comprise C. notice D. divide

3. A. house B. happen C. hair D. honor

4. A. took B. look C. blood D. good

5. A. read B. ready C. reach D. teach

II) Choose the word whose stress pattern is different from the rest of the group:

6. A. collection B. inspiration C. occasion D. compulsory

7. A. listen B. divide C. admire D. depend

He stands there day in, day out, giving out drinks to mostly rude customers who are late to their work.

=> Anh ta đứng đó ngày này qua ngày khác phân phát đồ uống cho hầu hết những khách hàng không văn minh đi làm muộn.

S=-a+b+c-c+b+a-a-b

S=-a+b=b-a

nên /S/=/b-a/

mà a> b suy ra /S/=a-b

tick mik nhé đúng đấy

a, Để ảnh bút chì song song, cùng chiều với nó ta đặt bút chì song song với gương.

Để ảnh bút chì cùng hướng, ngược chiều với nó ta đặt bút chì vuông góc với gương .

b, Vẽ hình 1 và 2 ứng với 2 trường hợp trên: