Can you imagine that a smart man like him ________ make such a stupid mistake?

A．might B．should C．would D．need

My father insisted that every minute ________ made full use of ________ the

work well.

A．be；to do B．has been；doing

C．be；doing D．has been；to do

To ________ it simply, if you don't apologize to him，you will lose this friend.

A．put B．make C．speak D．talk

You'd better ________ some money for special use.

A．pick up B．set aside

C．put off D．give away

Those who have ________ floods and sandstorms know the importance of

environmental protection.

A．gone over B．gone through

C．got through D．got over

The wrong you have done to him is terrible，________， in my opinion，you should apologize to him.

A．which B．that

C．what D．for which

—What do you think made Celia so happy?

—________a prize in the recent competition.

A．As she won B．Won

C．Winning D．Because of winning

________ the right decisions ________ the future is probably the most important things we'll ever do in our lives.

A．Making；concerned B．Made；concerning

C．To make；concerned D．Making；concerning

The air has leaked out of this football.Could you get it ________ up?

A．blow B．blowing C．blown D．to blow

________ on ten years of observation and study, Professor Wang announced that

everyone dreams every night，whether they realize it or not.

A．Basing B．Based

C．Been based D．Having based