第二部分 单项选择（共20小题；每小题1分，满分20分）
21. ---- Mary, what an interesting film it is! I really enjoyed it!
----___________. I really fell asleep.
A. Yes, you are right. B. No, I don’t think so.
C. So it is. D. No, you’re wrong
22. _____ trees are planted each year on the Tree-Planting Day all over the country.
A. Tens of thousand B. Tens of thousands of
C. Ten of thousands of D. Tens and thousands
