第一部分:单项填空(共15小题,每小题1分,满分15分)
1. most efficient way to understand thousands of new words is to gain good knowledge of basic word formation.
A.A; a B.The; 不填 C.A; 不填 D.The; the
2.The earthquake and the suffering has caused will affect us greatly for a long time.
A.that B.it C.which D.what