1 . To work from home, which one could hardly imagine, has been made               with the development of computer technology.

A．possible

B．it possible

C．possibly

D．to be possible

2 . —Did you have a good night's sleep, sir?
—Oh, exactly．It was such a comfortable bed．I could never have ____ sleep．

A．a worse	B．the best
C．the worst	D．a better

3 . When the policeman stopped us, we all looked questioningly at him, ________.

A．nervously and puzzled	B．nervous and puzzling
C．nervous and puzzled	D．nervously and puzzling

4 . Jane was so ______ for the news of her lost child that she was almost driven ______.

A．proper; madly	B．thirsty; mad
C．sad; madly	D．curious; mad

5 . He is very popular among his students as he always tries to make them_______in his lectures.

A．interested

B．interesting

C．interest

D．to interest