题目内容
Mr Wu often warns us ________ talk when we are having a lesson.
[ ]
A.
don’t
B.
not to
C.
won’t
D.
not
答案:B
解析:
解析:
|
动词不定式的否定为not to do。 |
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题目内容
Mr Wu often warns us ________ talk when we are having a lesson.
don’t
not to
won’t
not
|
动词不定式的否定为not to do。 |