I ----- the party much more if there hadn't been quite such a crowd of people there

问题描述:

I ----- the party much more if there hadn't been quite such a crowd of people there
A.would enjiy
B.willl have enjoyed
C.would have enjoyed
D.will be enjoying

答案应该是C.因为if 从句是had +过去分词,是过去情况的虚拟条件句,主句应该用would have +过去分词.