Public service advertisements are often run _____ free, and are ______ to educate people about health, safety, or any other issue which affects public welfare.

   A. for, mean     B. for, meant       C. of, to mean        D. in, meaning

The old woman found herself ______ when she left the market.

A. cheating          B. cheated       

C. to be cheated     D. to have cheated

Brain told you that there wasn’t anyone in the room at the moment, ______?

A. was there    B. wasn’t there      C. didn’t he          D. did he

Doctors believe that only a small number of people ____ of this kind of disease.

   A. is in danger          B. is in a danger      

C. are in danger         D. are in the danger

_____ books you have borrowed from the library should be returned in two weeks’ time.

   A. Whatever       B. However         C. No matter what       D. What

They would not allow him _______ climbing Mount Everest.

   A. to risk to        B. to risk going        C. risking going      D. risk going

We ______ for one hour and a half and it is about time we ______ a rest.

A. trained; take                         B. have trained; took

C. are training; will take                   D. had trained; to take

We have to work hard; ______ we’ll lose the chance.   

A. therefore         B. otherwise            C. besides          D. however

I am in low spirits, because the money _______ I was going to buy Mum a present is gone.

A. with which        B. from which          

C. by which          D. through which

--- Shall I tell John about it?

   --- No, you _____. I’ve told him already.

   A. mustn’t         B. wouldn’t        

C. shouldn’t            D. don’t have to