Themanmadeanotherdiscovery,　　　　ofgreatimportancetoscien...

問題詳情：

The man made another discovery,　　　　of great importance to science.

A. which I think it is         B. I think which is

C. I think it is　             D. which I think is

【回答】

D

知識點：定語從句

題型：選擇題