Question

2道倒装句选择题疑问1.They would certainly have come and helped us ___

Answer 1

1.A

虚拟语气的用法之一：与过去事实相反的,主句用would have done,从句用过去完成时.这个句子中,前面的是主句,后面的从句倒装,还原过来应该是if they had had time

2.A

因为表否定的副词Nowhere放在句首,所以主句要倒装,明显是一个there be句型,所以选A