题目内容:
—____________ we leave the library before 5 o'clock?
—No, you needn't. You can stay here until 5:30.
A.Must
B.May
C.Can
参考答案:
答案解析:
—____________ we leave the library before 5 o'clock?
—No, you needn't. You can stay here until 5:30.
A.Must
B.May
C.Can