22、Only after the second tower of the World Trade Centre          did people know it was not an accident, but an attack of some kind．

 A．had hit         B．did fall        C．was hit        D．was fallen

21、The writer was       his writing and he forgot to flick(轻弹) the ashes from his cigar.

A．absorbed to       B．absorbed in        C．absorbed on        D．absorbed at

20、He divided the tools ___________ the children, who were ___________ three groups.

A．between; separated from

B．among; divided into

C．between; divided into

D．among; separated from

19、—Is this the computer you ________last week?

—That’ s________.
A．had it repaired; the one

B．repaired it; it

C．had repaired; it

D．had repaired; the one

18、He is the only one of the students who _________________ a winner of scholarship for three years.

A．is         B．are          C．have been         D．has been

17、It’s said that the _______ yesterday _____￡1000 _____ China Bank.

A．robber was caught; robbed; of

B．robber was caught; was robbed; from

C．thief caught; robbed; of

D．thief caught; stole; from 

16、Not until 1916____ the existence of the war.

A．that he recognize                                     B．when he recognized

C．did he recognize                                      D．and he recognize

15、In front of the house _____ which came here to be in search of several missing children. 

A．several police cars were                           B．were several police cars

C．was several police cars                             D．several police cars was

14、She is not fond of cooking, ____ I.

A．so am            B．nor am           C．neither do I            D．nor do

13、You need warm clothes to _________you against the cold．

A．save          B．protect           C．prevent           D．keep