1 . I was about to leave my house ________there was a knock at the door．（用适当的词填空）

2 . He was about to tell the secret ________someone called him. (用适当的词填空)

3 . Come and see me whenever ________.

A．you are convenient	B．you will be convenient
C．it is convenient to you	D．it will be convenient to you

4 . The flu is believed _______ by viruses that like to reproduce in the cells inside the human
nose and throat.

A．causing

B．being caused

C．to be caused

D．to have caused

5 . --How was your weekend, Rose?
--Awful! This was the first time I ________ alone at home, bored to death.

A．had left

B．had been left

C．have been left

D．have been leaving

6 . As a young man, there was _______ time _______ I hated to go to school.

A．a; that	B．a; when
C．the; that	D．the; when

7 . ---- What do you think of the book? ---- Oh, excellent .It is worth __________ a second time.

A．to read

B．to be read

C．reading

D．being read

8 . Either you or one of your students________ to attend the meeting that is due tomorrow.

A．are

B．is

C．have

D．be

9 . I missed the last bus and had no money for a taxi，so I could do nothing but ____ home last night.

A．to walking	B．walk
C．walking	D．walked

10 . _____got into the room_____ the telephone rang.

A．He hardly; then	B．Hardly had he; when
C．He had not; than	D．Not had he; when