问题描述：
用should,may,can,must填空
It's raining outside.You ( ) stay here a little longer.
It ( ) not be Jerry.he flew to London this afternoon.
Visitors ( )not walk on the grass in the park.
You ( )not tell my mom the bad news.
要说明为什么选
It's raining outside.You ( ) stay here a little longer.
It ( ) not be Jerry.he flew to London this afternoon.
Visitors ( )not walk on the grass in the park.
You ( )not tell my mom the bad news.
要说明为什么选
问题解答：
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