The witnesses said that ______ UFO was travelling from east to west when they saw it at ______ sunset.

A. the; / B. /; the　 C. an; / 　 D. a; the

He used to ____ his teaching when he was young．

A．devote to 　B．be devoted to 　 C．devoting to　 D．being devoted to

I doubt _____ he will come here on time.

A. that 　 B. whether　 C. when 　 D. where

-Did you have any trouble with the customs officer?

-________ to speak of.

　 A. No　　　　　　 B. Nothing　　　　　 C. None　　　　 D. Neither

The students like Mr. Smith very much because he always ____________(結(jié)合) teaching with pleasure.

If you’ve finished, we can have a coffee ._______,you’d better keep working.

A. If so　 B. Only if　　 C. If only　 D. If not

--May I have a talk with one of your sports reporters?　

--Sorry, but all of them are out to______the main events of the day.

A. get 　 　 B. find　　 C. cover 　 　D. search

—Shall I help clean the kitchen，Mum?

—Thank you. But you ________ it because I can do it myself.

A. mustn’t have done 　　 B. wouldn’t have done

C. mightn’t have done 　 D. haven’t got to do

He takes such ____ to do his work that I am deeply moved.

　 A. a pain 　 B. pains

　 C. pain 　 D. big pain

I'm sorry, but I didn't mean to keep you waiting here for a long time. Can you________ me?

　　 A．forgive B．satisfy C．a(chǎn)pologize　　　　 D．gain