Question

______, they would certainly come and help us.

A．Had they time

B．Do they have time

C．Had they have time

D．Did they had time

Answer 1

A

这是一个if引导的条件从句的省略，如果包含had, were, should, 或could, if的虚拟条件句省略时，就要将这些词放在主语前面作部分倒装。