1 . —_______ you write so well?
—By reading and keeping diaries every day.

A．How is it	B．What is it
C．How is it that	D．What is it that

2 . I saw Tom in the meeting-room, so he      attend the meeting.

A．surely

B．did

C．does

D．really

3 . I just don’t understand ______ that leads to so many teenagers becoming addicted to playing computer games.

A．why it does

B．what it does

C．what it is

D．why it is

4 . It ________ we had stayed together for a couple of weeks ________ I found we had a lot in common.

A．was until; when

B．was until; that

C．was not until; when

D．was not until; that

5 . I don’t mind her criticizing me, but___is how she does it that I object to.

A．it	B．that
C．this	D．which

6 . It is not who is right but what is right_________is of importance.

A．which	B．it
C．that	D．this