Ⅱ．单项填空（共15小题；每小题1分，满分15分）
21．—What do you want to do next? We have half an hour before the film begins.
—_______．Whatever you want to do is fine with me.
A. It just depends
B. It’s up to you
C. All right
D. Glad to hear that
22. Pollution _______ more people living in today’s society than it did in previous years.
A. brings B. efforts
C. affects D. effects
23. (2012·杭州高一检测）The foreigner was talking to the children in the park ______ he was familiar with them.
A. even though B. in case
C. so that D. as if
24. (2012·北京高一检测） The dictionary______ and it will soon come out.
A. is printing B. is being printed
C. is going to print D. is printed
25. It was pretty _______ from her voice that she was playing a joke on all of us.
A. optimistic B. obvious
