140

B

D

1. stamp / a child / Minh / since / collected / was / has / he

=> He has collected stamps since he was a child.

2. tomorrow / can / not / we / somewhere / I / so / working / go / am

=> I am not working tomorrow so we can go some where.

3. back / in / months / England / going / two / are / to / they

=> They are going back to England in two months.

4. information / entertaiment / also / is / TV / only / but / not / bringing

=> TV is not bringing enteraiment but also information.

5. struggle / on / always / nature / home / life / at / is / the farm / with / a

=> At home on the farm, life is always a struggle with nature.

B

Câu 2:

a, Chiều dài mảnh vườn hình chữ nhật đó là:

(150 + 40) : 2 = 95 ( m )

Chiều rộng mảnh vườn hình chữ nhật đó là:

150 - 95 = 55 ( m )

Diện tích mảnh vườn đó là:

55 x 95 = 5225 ( m2 )

b, Diện tích trồng hoa là:

5225 x 60% = 3135 ( m2 )

          Đáp số:.........

C. 20

B

x - ( - b ) = a

=> x + b = a

=> x = a - b

Vậy nếu x - ( - b ) = a thì x = a + b là sai

= ( 153 + 47 ) + ( 64 + 36 ) + 27

= 200 + 100 + 27

= 327