单项选择题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


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1.单项选择题I’ve come to ask him for the book. That’s why I () wait until he comes back.

A.need
B.should
C.oughtto
D.have   to

3.单项选择题I () help. I can do it myself.

A.need    to
B.don’t    need
C.needn’t
D.need

4.单项选择题Since the road is wet,() last night.

A.it   must   have  rained
B.it   must   rain
C.it   must   be    raining
D.it   must   have   been  raining

5.单项选择题()that it was raining, he put on his raincoat.

A.See
B.To see
C.Saw 
D.Seeing

6.单项选择题When did you see her? What () then?

A.was she doing
B.did  she  do
C.is  she  doing
D.has  she   hone

7.单项选择题When Jack arrived, he learned Mary () for almost an hour.

A.had gone
B.had  set  off
C.had  left
D.had  been  away

8.单项选择题()what she would do, she didn't say anything.

A.Ask
B.Asking 
C.Asked
D.To ask

9.单项选择题Be quiet! They () a meeting in the next room.

A.are  having
B.have
C.were  having
D.will   had

10.单项选择题"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