I don’t understand what the engineer means, but I’ve got ______ rough idea of _____ project plan.

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

--- Bill, can I get you anything to drink?

---        .

A. You are welcome                    B. No problem

C. I wouldn't mind a coffee              D. Doesn’t matter

______that he has made of the kind of metal____ known.

A. Little use; is   B. Many uses; are

C. Full used; are   D. A use; is

He invited me to a dance after the show_______Christmas Eve.

A. at       B. on        C. in         D. by

Jack almost fell off the cliff, but managed to _____ until help came.

         A. keep on    B. catch on    C. count on    D. hang on

To save class time, our teacher has ______students do half of the exercises in class and complete the other half for homework.

A.     us  B.we  C.our  D.ours

I'd like to take _____ of this opportunity to thank you all for your cooperation.

           A. profit        B. benefit      C. advantage     D. interests

When the little child caught sight of the young woman _____ in white he started brawling immediately.

          A. dressed       B. wearing      C. worn      D. putting on

-------Do you have enough to ________all your daily expenses?

--------Oh yes, enough and to spare. 

A. cover         B. spend        C. fill        D. offer

– 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