Sincetherearemanyexcellentathletescompetingagainsteachotherinthegame，itisuncertainhewillsucceedinwinningthemedal．（）A.thatB.whatC.whetherD.where

Question

Since there are many excellent athletes competing against each other in the game，it isuncertain __________ he will succeed in winning the medal．（　　）

A. that

B. what

C. whether

D. where

Since there are many excellent athletes competing against each other in the game，it isuncertain __________ he will succeed in winning the medal．（　　）

Since there are many excellent athletes competing against each other in the game，it isuncertain __________ he will succeed in winning the medal．（　　）

A. that

B. what

C. whether

D. where

Answer 1

答案：c．根据It is uncertain说明it 是形式主语，而真正主语 he will succeed in winning the medal可知句子完整，不缺成分，但结合句意，他是否会赢奖牌还是不确定的．故选c．