一、 单项填空（本题有10小题，每小题1分，共10分）
请从A、B、C、D四个选项中选出可以填入空白处的最佳答案。
1.Dave is ______ honest boy. We can believe him.
A. a B. an C. the D. /
2.-Could you tell me something about that boy?
-Sorry, I don’t know anything about him. We are ______.
A. friends B. classmates C. strangers D. neighbors
3.-How was the English evening party last night?
-It was great fun. You ______ come.
A. should B. must C. may D. can
