09年春《综合英语》(IV)作业2

09年春《综合英语》(IV)作业2
4. The worker was___off by his boss, for he did’t work hard.
A. laid
B. lied
C. lay
D. lain
12. I’ve written ten pages___you’ve only written eight.
A. whereas
B. when
C. while
D. as
14. The old man was very worried about his son’s safety, and he walked___in his room.
A. by and by
B. to and fro
C. again and again
D. foot by foot
21. The size of the audience,___we had expected, was well over twenty thousand.
A. what
B. as
C. whom
D. while
请帮我做这几道题,谢谢啦