20．Anna was reading a piece of science fiction, completely_____ to the outside world..

A．having been lost B．to be lost　 　　　　 C．losing　　 　　　　 D．lost

19．Although he likes playing tennis, he is_____ but a good tennis player.

A．anything　　　　　　 B．something　　　 C．nothing　　　 　　 D．everything

18．He has ______ good knowledge of many foreign languages, and one of them is English which is ______ language spoken by many people in the world.

A．the, a　　　　　 　　　　　　　　　　　　　　　　 B．a, the　　 　　　　　 C．a, a　　　　　 　 D．the, the

17．He is constantly _____ not to do that, but he still goes on doing it all the same.

A．being told　　　　　 B．telling　　　　　　　　 C．told　　　 　　　　 D．to tell

16． 　　　　they had lost the game, tears ran down his face.

A．Hearing the news that　　　　　　　　　　　　　 B．As he heard the news that

C．Having heard the news that　　　　　　　　　 D．Him hearing the news that

15．I thought ______ no use talking with him. _____ was a waste of time.

A．there; There　　 　 B．it; There　　　 　 C．there; It　　　 　 D．it; It

14．Busy ______ he is, he spares some time to study English every day.

A．although　　　　　　 B．as　　　　　　　　　　　 C．as if　　　　　　　　　　 D．even though