Question

( )us the information，we would have been ambushed.

A.Hadhenotgiven
B.Ifhedidnotgive
C.Shouldhenotgive
D.Werehenottogive

Answer 1

【答案】：A
考查虚拟语气。根据后半句would have been可知，是与过去事实相反，所以if条件句中的谓语动词用had+done的形式，因此A项正确。当if引导的虚拟条件从句中含有had，were 或should时，如省略if，则要将had，were或should提前。此处是省略了if并将had提前，还原为if he had not given us the information。故本题选A。句意：如果不是他给了我们消息，我们就会遭到伏击。