The cancer risks _____ with smoking have been well proved.

　 A. combined　 B. associated　 C. caused　 D. joined

—You　　 part in the party in time.?

—Sorry，I was delayed by the accident.?

A. are supposed to take 　　　　 B. have supposed to take?

C. are supposed to have taken　　　　 D. supposed to take?

Can you tell me _______to join the army?

A. how a person has to be old

B. how does a person have to be old

C. how old a person has to be old

D.how old does a person have to be

—Is Peter there??

—　　 ，please.I’ll see if I can find him for you.?

A.Hold up　　　　　 B.Hold on　　　　 C.Hold out　　　 D.Hold off

Quantities of arms ________ hidden in the trucks.

　 A．were discovered　 B．has been discovered

　 C.have discovered　 D．had discovered

The farmer hired extra workers for the h_________.

Tom was in a bad mood(情绪)but he couldn’t say what it was bothered him.

A. that　　　　　 B. who　　　 C. what　　　　　 D. which?

Let’s walk over 　　 the sun on the other side of the street.

A、in　　　 B、to　　　 C、under　　　 D、by

A man is being questioned in relation to the________murder last night.

A. advised B. attended

C. attempted D. admitted

_______ food has been sent to the disaster area to help the people who lost their homes.

　 A. A large amount of 　　　　　　　　　　 B. A large number of

　 C. A great many 　　 　　　　　　　　　　　 D. A great many of