情态动词Heleftyesterday,soheinBeijing.A.mayarriveB.mayhavearrivedC.mustarriveD.arrives为什么选B不选C?怎么判断到底是肯定推断还是可能推断,题中有哪个词是暗示吗?Shequickenedherpaceinorderthat

Question

情态动词
He left yesterday,so he _______ in Beijing.
A.may arrive B.may have arrived C.must arrive D.arrives
为什么选B不选C?
怎么判断到底是肯定推断还是可能推断,题中有哪个词是暗示吗?
She quickened her pace in order that she _____ with the others.
A.may catch up B.might catch up
C.could have caught up D.might have caught up

Answer 1

肯定推断是固定搭配must be 否定固定式是can‘t be题中C少了be动词选B的话句意为他昨天离开的,所以他有可能已经到北京了.quickened her pace 加快他的脚步这句话意思是他加快他的脚步为了跟上其他的人选A的话may应为...