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判断下列句中画线部分正误
We must talk quietly in the classroom.
根据首字母填空
My teacher said we should have good eating habits. We must eat h______ food.
看图判断正误。正确的填写T，错误的填写F
We must turn left here.
It's red lights．We must ________．
A．stop
B．wait
C．go
Look at the examples and make sentence
Examples：drink water (T)
We must drink water.
talk in class (F)
We mustn't talk in class.
play before doing homework (F)
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