Look,Sue is over there.That ______ be her.She is in Canada now.A.mustn't B.can't C.needn't
问题描述:
Look,Sue is over there.That ______ be her.She is in Canada now.A.mustn't B.can't C.needn't
D.won't
为什么A不可以
答
B.can't
mustn't 禁止的意思.