Câu hỏi: Choose the letter A, B, C or D to complete the sentences

If we continue to deforest, our earth ___________ polluted.

A.  

B. is      

C. will be      

D. was

Câu 1:

They are using leaves __________ food.

A. wrap      

B. to wrap      

C. wrapping      

D. will wrap

Câu 2:

throw/ environment/ If/ pollute/ will/ you/ it/ the/ the rubbish.

A. If it throw the rubbish, you will pollute the environment.

B. If you will throw the rubbish, it pollute the environment.

C. If you throw the rubbish, it will pollute the environment.

D. If it pollute the environment, you will throw rubbish.

Câu 3:

Why don’t we __________ old school objects for candies?

A. swap      

B. raise      

C. wrap      

D. recycle

Câu 4: Choose the letter A, B, C or D the word that has the underlined part different from others.

A. A. effect      

B. pollution      

C. invite      

D. charity

Câu 5:

They use ________ plastic bottles to keep water.

A. refillable     

B. natural      

C. polluting      

D. charitable

Câu 6:

If students recycle and use recycled materials, they will save _________.

A. energy      

B. food      

C. water