问题
选择题
________ you come earlier, you ________ met him. He just left half an hour ago.
A．Should; would
B． Were; could
C．Had; would have
D．Could; would have
答案
答案：C
考查虚拟语气，根据后面的ago可知，前面的句子是对过去进行虚拟，if引导的虚拟条件句，可以提前had should were，省略if，构成倒装句，即C，相当于If you had come earlier, you would hae met him.