题目内容
You ________ be careful when you cross a busy road.
[ ]
A.needn't
B.may not
C.must
D.can't
答案:C
解析:
解析:
|
must“一定”.本句句意:过马路时,你一定要小心. |
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题目内容
You ________ be careful when you cross a busy road.
[ ]
|
must“一定”.本句句意:过马路时,你一定要小心. |