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

We couldn't hear (A) what he was saying (B) over the noise (C) off the planes taking (D) off

A. how long

B. in

C. long

D. through 

A. If people don’t use too many vehicles, the air won’t be polluted.

B. If people won’t use too many vehicles, the air don’t be polluted.

C. If people wouldn’t use too many vehicles, the air didn’t be polluted.

D. If people didn’t use too many vehicles, the air wouldn’t be polluted.

A. matters     

B. loading     

C. software     

D. onto 

A. The street not look attractive because there’s a lot of rubbish.

B. The street not look attractive because there’re a lot of rubbish.

C. The street doesn’t look attractive because there’s a lot of rubbish.

D. The street don’t look attractive because there’re a lot of rubbish.

A. The music club is making so much noise that the residents require them to turn the music down.

B. The music club is make so much noise that the residents require them to turn the music down.

C. The music club be make so much noise that the residents require them to turn the music down.

D. The music club be making so much noise that the residents require them to turn the music down.

A. took

B. because of

C. no

D. left