第一节：单项填空（共15小题，每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. When we study we should get rid of the stale and should the fresh.
A. take away B. take up C. take off D. take in
2. Why it rain on Sunday? We can’t go camping as planned.what a pity!
A. should B. can C. must D. may
