几道英语选择,需要原因
问题描述：
几道英语选择,需要原因
1.---Frank isn't in the house now.
---____ left by the back door?
A.Had heB.Must he haveC.Should he have D.Could he have
2.I'm sorry ,but I must say his English still___.
A.need to be improved B.needs to improve C.needs to be improving D.needs improving
3.You'll like rhe new school.It ___ be a little small,I think ,but you'll get used to it soon.
A.could B.must C.shall D.should
4.When three pwople travel with me,there____ someone who ____be my teacher.
A.must have ,mightB.must be,canC.may be,could D.may have ,may
麻烦说明原因
答
1.D.他可能是从后门走掉了吗?情态动词加现在完成时表示对过去的推断.
2.D.need加doing sth表示的是被动,等于need to be done
3.A.could表猜测的可能
4.B.must表肯定推断,be是there be 结构,can是可以