求高手解答11、When Mr. Smith failed _____ us, we left without him.

求高手解答
11、When Mr. Smith failed _____ us, we left without him.
A.to meet
B.to be meet
C.not to meet
D.not to be met

12、_____ in the open air has given you a good color.
A.Work
B.Worked
C.Working
D.To be working

13、You’d better have your TV set _____ .
A.repair
B.repaired
C.repairing
D.to repair

14、－ Could you tell me something about your university? － ————
A.Of course.
B.I’m afraid certainly.
C.Yes, I’m afraid not.
D.I don’t think so.

15、“Town Hall is the tallest building in the city.” “_____ from here?”
A.Can it see
B.Can it be seen
C.Can see
D.Can be seeing it

16、Every possible test _____ to decide the nature of her illness.
A.carries out
B.carried out
C.was carried out
D.has carried out

17、_____ we don’t lose heart, we’ll find a way to get over the difficulty.
A.Once
B.Because
C.When
D.As long as

18、There was no reason for you _____ the important discussion held the day before yesterday.
A.not to attend
B.not attending
C.not to miss
D.failed to attend

19、We must have the work _____ before next Friday.
A.finish
B.finished
C.finishing
D.To be finished

20、Don’t disturb me. I _____ letters all morning and have written ten so far.
A.write
B.have written
C.was writing
D.have been writing