Question

“I’m certainly more and more to the conclusion that Iraq has, ____ they maintained（断言）, destroyed almost  all of _____ they had in the summer of 1991.” Blix said.

    A. which, what     B. as, which     C. as, that        D. as, what

Answer 1

D

解析:

关系代词as引导非限制性定语从句作maintain的宾语;在宾语从句中缺少宾语，应用what引导。故选D。