It is the first time we ______ such a great quantity of cotton.

问题描述:

It is the first time we ______ such a great quantity of cotton.
A.imported .B.have imported.C.should import.D.would have imported..
麻烦 问下选什么,

B.have imported 为正确选项.
It / This is +the+序数词+time+that +现在完成时态;It / This was +the+序数词+time+that +过去完成时态.固定用法的句型.
你的答案肯定错了,不可能用过去时.