单项填空 (共10分,每小题1分)
从每小题的四个选项中选出一个能填入题中相应空白处的最佳答案。
16. -Where are the keys? --I’m not sure. They ______ in the drawer.
A. can be B. must be C. may be D. should be
17. -Did you find the school easily? --No. I didn’t find it ______ Tony came along.
从每小题的四个选项中选出一个能填入题中相应空白处的最佳答案。
16. -Where are the keys? --I’m not sure. They ______ in the drawer.
A. can be B. must be C. may be D. should be
17. -Did you find the school easily? --No. I didn’t find it ______ Tony came along.