1. 选词填空

on campus; at last; make an impression; leave…alone; concentrate on; in exchange for

1. （1） It is hard for him to his study because of the noise outside.
3. （2） Mark worked in the restaurant his dinner.
5. （3） After hoping, waiting, and working for it for a long time the big day for the football match came ．
7. （4） Students are required to wear uniform , which some find really annoying.
9. （5） He is very active at the first few classes, hoping to on the teachers.
11. （6） All I want is to be so that I can sort out all the papers by myself.