24.-Excuse me, is this Mr Brown`s office?

　 -I‘m sorry, but Mr Brown　　 works here. He left about　　 three weeks ago.

　 A.not now　　　 B.no more　　　　 C.not still　　　 D.no longer

23.　　　 　more attention, the trees could have grown better.

　 A.Given　　　　 B.To give　　　　 C.Giving　　　　 D.Having given

22.The police found that the house　　　 and a lot of things　　　 .

　 A.has broken into;　 has been stolen　　　　　 B.had broken into;　 had been stolen

　 C.has been broken into;　 stolen　　　　　　　　 D.had been broken into;　 stolen

21.After the new technique was introduced, the factory produced　　　 tractors in 1988 as the year before.

　 A.as twice many　　 B.as many twice　　　 C.twice as many　　　 D.twice many as

20.His father died and　　　 him a lot of money.

　 A.gave　　　　　　　　　 B.left　　　　　　　　 C.sent　　　　　　　　 D.offered

19.-Do you mind my taking this seat?

　-　　　 .

　 A.Yes, sit down please　　 B.No, of course not　　　

C.Yes, take it please　　　 　D.No, you can‘t take it

18.Most of the artists 　　　to the party were from South Africa.

　 A.invited　　　　　 B.to invite　　　　 C.being invited　　　　 D.had been invited

17.Tom kept quiet about the accident　　　　 lose his job.

　 A.so not as to　　　　　 B.so as not to　　　　　 C.so as to not　　　　 D.not so as to

16.The horrible noise from the man’s room simply　　　　 me mad.

　 A.put　　　　　 B.caused　　　　　 C.drove　　　　　 D.turned

15.He　　　 　you more help, even though he was very busy.

　 A.might have given　　　　 B.might give　　　　 C.may have given　　　　 D.may give