--Do you mind my sitting here?--____.

       A. Yes, have a seat, please.    B.Yes, please take this seat

C. No, of course not         D. No, you can’t sit here

——Will $200 ____ the cost of the damage?

    ——I’m afraid not. I need at least $100 more.

A、do   B、include  C、cover    D、afford

I regret _____ hard at school, or I would have succeeded in passing the exam.

A. not to work                            B. having not worked

C. to have not worked                      D. not having worked

You can’t imagine what great trouble they have _____ the problem _____.

A. to solve; being talked about               B. solving; discussing

C. to solve; to talk about                    D. solving; being discussed

Were it not for the snowy weather, we ________ all right.

A. would be                                    　　       B. would have been        

C. were                                                         D. may be　

There was plenty of times. She _____.

A. mustn’t have hurried                                B. couldn’t have hurried

C. must not hurry                                         D. needn’t have hurried

The train ______ at the present speed until it reaches the foot of the mountain at about nine o’clock tonight.

A.went             B.is going            C.goes               D.will be going

---- Hi , Randall,Come on in .

----Uh, yeah, I __________ by to see if you ___________ for a roommate to share your house.

A.stopped; were still looking                B.will stop ;are still looking

C.have stopped ; were still looking           D.stop ; will have looked

He ________ to the lab than he set out to do the experiment.

A. has no sooner got     B. no sooner got

C. will no sooner get     D. had no sooner got

—We didn’t find Smith attending the lecture.

   —No one ___ him about ___ a lecture the following day.

A.had told, there to be                     B. told, there was

C.had told, there being                    D. told, there to be