, they would certainly e and help us.
A. Had they time
B. Do they have time
C. Had they have time
D. Did they had time
网友回答
(答案→)A. Had they time
B. Do they have time
C. Had they have time
D. Did they had time
解析：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。