题目内容
( ) 6.-Must I wait for you here now?
―No,you . You may be back in half an hour.
A. don't have to B. mustn't
C. can't D. shouldn't
6. A don't have to表示"不必"。
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题目内容
( ) 6.-Must I wait for you here now?
―No,you . You may be back in half an hour.
A. don't have to B. mustn't
C. can't D. shouldn't
6. A don't have to表示"不必"。