He waited until it was dark ____ nobody could see him clearly.

A. so that         B. in order to        C. although           D. However

It was decided to _____ the search when there was no hope of finding the missing girl alive.

　　A. call off    B. take up    C. keep off    D. ring up

When a space shuttle has accomplished its _____, it can be ready for another trip in about two weeks.

　　A. venture  B. mission C. commission D. responsibility

The open university was started in order to help those who _____ having a university education when they were young.

　　A. stopped    B. failed    C. missed    D. ceased

If he refuses to _____ my plan, I can probably find someone more cooperative.

　　A. put up with     B. fall in with

　　 C. do away with    D. get along with

Although Lucy was slimming, she found cream cakes quite _____.

　　A. irregular     B. inevitable  

　　C. incredible    D. irresistible

Maria _____ missed the first train so as to travel on the same one as John.

　　A. deliberately    B. intensively

　　C. decisively      D. objectively

She stepped into the bedroom quietly______she might wake up her roommates.

A. for fear that        B. so long as    C. on condition that    D. in order that

You can arrive in Beijing earlier for the meeting, ______ you don’t mind taking the night train.

 A. provided     B. unless    C. though     D. until

I’d like Jane, ____________Joan, to go to the farewell party on behalf of (代表) our class.

A. more than        B. less than     C. rather than      D. or other