第二部分：英语知识运用（共两节，满分36分）
第一节单项填空（共16小题；每小题1分，满分16分）
从A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
15. It is ______ great fun to play Wechat(微信), which is very popular with ______ young in China.
A. the; the B.a; the C. /; the D. the; /
16. The ______ on her face told us that she was determined.
A. impression B. expression C. view D. sight
17. Ladies and gentlemen, please fasten your seat belts. The plane ______ off.
A. takes B. is taking C. has taken D. took
18. English is hard _______ well in a short time.
A. to learn B. to be learnt C. learn D. learning
19. Years of war has left the country _____.
