题目内容
The students must stop _______ in class when the teacher is speaking.
[ ]
|
A .to talk |
B .talked |
C .talk |
D .talking |
答案:D
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题目内容
The students must stop _______ in class when the teacher is speaking.
[ ]
|
A .to talk |
B .talked |
C .talk |
D .talking |