The folks were delighted at the message of their relatives _____ that mine explosion.
A.survived B.to survive C.were surviving D.having survived
为什么选D?
为什么不选B?
The China Pavilion,_____ ,"The Crown of the East," has a unique roof,is one of the most important style features in traditional Chinese architecture.
A.whose structure B.which structure C.structure of which D.of which structure
为什么不选C?