Each sentence has a mistake. Find it by choosing the letter A, B, C or D.

Many scientists are worried about the survival of humans.

A. Parents should to listen to their child’s opinions.

B. Parents should listen to their child’s opinions.

C. Parents should listen with their child’s opinions.

D. Parent shouldn’t listen to their child’s opinions.

A. I would like to stay at home than go out for jogging.

B. If I have to choose, I will choose to stay at home.

C. I like staying at home than going out for jogging.

D. I prefer staying at home to going out for jogging.

A. is     

B. forgettable     

C. can’t     

D. for

A. We will not see any many endangered animals.

B. We should save many endangered animals.

C. Many species of animals are on the verge of extinction.

D. Many species of animals are going to be extinct.

A. willing     

B. to     

C. take part in     

D. against

A. precious     

B. species     

C. being protected    

D. natural