8．----I’ve got to go now.

   ---Must you? I          you could stay for dinner with us.

   A. think    B. thought   C. have thought   D. am thinking

There's no bus now, and we can't get home _______ by taxi.

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

     Owen wouldn’t eat anything ____________ he cooked it himself

A. until       B. since      C. unless       D. while

Dark clouds are a ___of rain while a smile a ____of friendship.

A. sign; gesture   B. gesture; sign  C. sight; method  D. make; way

The biggest whale is ___ blue whale, which grows to be about 29 meters long—the height of ___ 9-story building.  

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

-– I wonder how much you charge for your services.

 --- The first two are free         the third costs $30.  

 A. while       B. until         C. when          D. before

______ the project in time, the staff were working at weekends.

  A. Competing    B. Having completed   C. To have completed  D. To complete  

The fire spread through the hotel very quickly but everyone _______ get out.

A．had to B．would C．could D．was able to

The open-air celebrations has been put off ___the bad weather.

A.  in case of  B. in spite of  C. instead of  D. because of

-How long have you been in the room?

- Just a few minutes. My cousins ___home together with me.

A. have walked  B. had walked   C. walked  D. have been walking