8.He has never appeared, ______ come to see me.

A. now that　　 B.l et alone　 C. in case　　　 D. as long as

7.----Is this Mr.White's office, Mary?　　 -----Yes, _______.

A. this way, please　 B. go ahead　 C. after you　 D. make yourself at home

6.Although they have been ____ the lost book for a long time, it seems to be nowhere to be found.

A. for　　　 B. against　　　 C. after　　　 D. before

5.They are _______ to give up smoking, but they don't do so.

A. suggested　　 B. persuaded　 C. advised　　 D. considered

4.This cinema is only ________ for the people above 18.

A. intended　　 B. admitted　 C. allowed　　 D. agreed

3.Hearing his returning home safe and sound ______ his pleasure.

A. adds　　　 B. adds to　　 C. adds up to　　 D. adds up

2.Was he about to go out ________ it began to rain?

A. when　　　 B. while　　 C. as　　　　 D. until

1.The fire spread quickly but everyone _______ escape from it.

A. could　　　 B. was able to　　 C. might　　　　　 D. must

3、　 参考词汇 :集中(注意力) 　concentrate on

2、　 字数: 100 左右