Ⅰ.单句语法填空
1．The polluted (pollute) air is bad for our health.
2．He always had (have) no breakfast that year.
3．The man talking (talk) to our headmaster is our new teacher.
4．The part played (play) by women in our society is very important.
5．She had a worried (worry) look on her face because she failed the exam.
6．The tower being_built (build) now in the distance will be completed in two months.
7．We finished the run in less than half the time allowed (allow)．
8．What do you think of the meeting held (hold) yesterday?
9．A big fire destroyed (destroy) the whole forest last year.
10．There are still many problems to_be_solved (solve) before we are ready for a long stay on the moon.
