—IheardthatMr.Smithhasbecomeatriathlete.—Oh,really?Heh...

問題詳情：

 —I heard that Mr. Smith has become a triathlete.

—Oh, really? He has become ______ he wanted to be.

A. who              B. which   C. what             D. that

【回答】

C

知識點：連詞

題型：選擇題