we must keep quiet in the reading room.(保持原句意思不变)We must keep quiet in the reading room.(保持原句意思不变)We _______ _________ in the reading room.
问题描述:
we must keep quiet in the reading room.(保持原句意思不变)
We must keep quiet in the reading room.(保持原句意思不变)
We _______ _________ in the reading room.
答
can't talk
答
mustn't talk