--- How far can you run without stopping ?

   --- ______________ . I’ve never tried.

A. Don’t mention it.      B. That’s all right.      C .I have no idea.      D. Go ahead.

--- Do you want a lift home?

  --- It’s very kind of you , but I have to work late in the office . I over slept this morning because my alarm clock _________ .

A.doesn’t go off      B. won’t go off      C. wasn’t going off     D. didn’t go off

I can’t say which wine is best ---- it’s a (an) ________ of personal taste.

A. affair           B. event                C. matter         D. variety

I can’t stand ______ with Jane in the same office. She just refuses ________ talking while she works.

A. working ;   stopping                     B. to work ;  stopping   

C. working ;  to stop                       D. to work ;  to stop

 ________ ,  she is the sort of woman to spread sunshine to people through her smile.

A. Shy and cautious                     B. Sensitive and thoughtful   

C. Honest and confident                  D. Lighthearted and optimistic

The computer was used in teaching .  As a result, not only __________ , but students became more interested in the lessons.

A. saved  was  teachers’ energy          B. was teachers’ energy saved

C. teachers’  energy was saved           D. was saved teachers’ energy

Anyone , once _______ positive for H7N9 flu virus , will receive medical treatment from our government.

A. to be tested          B. being tested           C .tested             D. to test

Although _______ my opinion, the old professor didn’t come up with his own.

A. against          B. on           C.  for         D. in

You should write a _____________ composition every other week.

A. three- thousand- word        B. three- thousands – word 

C. three – thousand – words      D. three – thousands- words

---- It’s the office! So you _____ know eating is not allowed here.

    ---- Oh, sorry.

A.must        B. will          C.  may         D.  need