Ⅰ.单句语法填空
1．We have reduced/have been reducing(reduce) emission of air pollutants in recent years，but cars are still major source of them.
2．I have been preparing(prepare) for the coming exams recently，and I feel exhausted physically and mentally.
3．The district council agreed with the objectors and turned down the application(apply)．
4．It was a neatly furnished(furnish) and immaculately tidy room.
5．I was too excited to fall(fall) asleep last night because my design had been accepted.
6．Prisoners were allowed no personal belongings(belong) except letters and photographs.
7．I was positive that things were going to turn out fine.
8．He has achieved what he set out to do(do) three years ago.
9．Our first assignment(assign) will be to set up a communications system.
10．With faith and perseverance(persevere)，he finally triumphed over all the difficulties.
