Many medical scientists are racing 　　　 time to find a cure for H1N1 as soon as possible.

A．on　　　　　　 B．against　　 C．for　　　　 D．in

I didn’t mean ____ anything, but those apples looked so good I couldn t resist ____ one.

A. to eat; trying　　 B. to eat; to try　 C. eating; trying　　 D. eating; to try

We drank　　 tea and made some small talk in　　 kitchen.

A．a；the　 B．the；a　 C．不填；the D．the；不填

．He is so diligent a student that he is always ________ his classmates in every subject.

A．in advance　　 　 B．in front of

C．far ahead of　 　 D．before

: Perhaps we are more satisfied with our life.
B: Perhaps it makes us feel more                    our life.

Games __________ young people compete are usually very difficult.

A. that　　　 B. which　　 C. in which　 D. in that

In a sports team each player has a clear role, and there are few occasions_____　　　 members are confused or uncertain of their roles.

　 A．when　　　　 B．where 　　 C．why 　　　 D．how

—I got a rise in salary!

—　　　 .

　 A．Yes, I think so. B．You did? C．Are you?　 D．My pleasure.

Sailing across the Atlantic alone is a r___________ thing.?

I don’t think Mary is angry with you,________?

A.do I　　　　　 B.is she?　　　　　 C.isn’t she　　　　 D.don’t I