42 _____ for the exam well, he can answer these questions easily.
(A) Having prepared
(B) Being preparing
(C) To prepare
(D) Prepare

答案：登入後查看
統計： A(167), B(43), C(36), D(15), E(0) #346042

Chin Chin Nian

B1 · 2013/06/17

#666566

原句為：He has prepared for the exam well, so he can answer these questions easily.因前後兩句主詞相同，所以能省略主詞與連接詞，並將前一句的has改成動名詞having,留下分詞片語的形式達到簡化句子的目的。