1Look!What you've done!You_more careful

问题描述:

1Look!What you've done!You_more careful
a.should have been b.had to
c.would be a.may be
句意是什麽,为何选a
2To travel from England to Scotland you_a passport.
b.needn't d.don't need
为何选d
3Why hasn't Mary turn up?I think the train_.
b.might be delayed c.might have been delayed
为何选c

1 should + 动词一般时态,表示建议别人应该怎样做,而should + 动词现在完成时态 表示 本应该怎样做 但实际没有那样做.动作已经完成了,但与说话人的期望相反.瞧,看你都做了些什么呀!你本该更细心些的.b c d 都不能表...