1) met/was reading

2) comes

3) see/recognize/will be wearing

4) decide/will support

5) saw/am

6) won't rain/start

7) were singing

8) have done/saw

Why didn't you come yesterday?

She usually doesn't play cards but watches TV.

chu vi của hình tròn:

  3 x 2 x 3,14 = 18,84 (dm)

diện tích hình tròn

  3 x 3 x 3,14 = 28,26 (dm²)

***mình khuyên bn nên dành cho mình 1 quyển sổ tay để ghi lại công thức toán, để sau này quên thì mở ra để xem lại OK

\(m-\frac{3m}{54}.2=10,8\)

\(\frac{9m}{9}-\frac{6m}{54}=10,8\)

\(\frac{9m}{9}-\frac{m}{9}=10,8\)

\(\frac{9m-m}{9}=10,8\)

\(\frac{8m}{9}=10,8\)

\(\Rightarrow8m=10,8.9\)

\(8m=97,2\)

\(m=97,2:8\)

\(m=12,15\)

1) A

2) C

3) A (to listen)

Bạn ơi!Đề thiếu hay là sai ý!

Xen lại nha!

1) have studied

2) doesn't rain

3) listening

4) was introduced

5) were

6) could

7) wore

8) watching

9) have (you) known

10) to be

11) walked

12) reading

13) goes

14) were

15) is (widely) read

16) will pass

17) learned

18) have

19) chatting

20) is divided

21) to turn

22) stops

23) writing

24) was feeding

Ta thấy  60 = 3x4x5 ; 45 = 5x9

Số bé nhất chia hết cho 60 và cho 45 là:

4 x 5 x 9 = 180

Cho ta biết hai bước chân trùng nhau liên tiếp cách nhau 180cm.

Với 51 lần bước chân trùng nhau thì đi được quãng đường là:

180 x (51-1) = 9000 (cm)

9000cm = 90m

Đáp số:  90m

1) He gets up early in the morning, doesn't he?

2) She has been playing piano for six years.

3) Are you interested in playing badminton?

4) How long do you do your homework?

5) Because they performed well, they won that match.

6) My father is good at teaching Math.

de qua vay ma khong biet . ngu nhu mot con heo