When he just got off the plane, he gave us a good description of ____in SpainA, what he had seen B, that he had seenC, which he had seen D, he had seen what 选A, 这是个什么从句?
问题描述：
When he just got off the plane, he gave us a good description of ____in Spain
A, what he had seen B, that he had seen
C, which he had seen D, he had seen what
选A, 这是个什么从句?
答
A
这里是宾语从句,从句中缺宾语,所以只能用what引导.