1.I doubt _______ they can complete the bridge ahead of time.

　　A.whether B.that C.why D.what

　　2.The question he asked was _______ I come here.

　　A.that B.how C.what D.because

　　3.Too many people are indifferent _______ others‘troubles.

　　A.with B.to C.of D.about

　　4.Let us see how dictionaries are made and how the editors _______ definitions.

　　A.lead to B.arrive at C.reach for D.approach to

　　5.Shanghai is the place _______ I was born.

　　A.on which B.in which C.when D.that

　　1.正确答案：A答案解析：doubt用在肯定句中，之后的宾语从句用whether或if引导。用在否定句中，后接宾语从句用that引导。

　　2.正确答案：B答案解析：这里表示的是：来的方式，要用how.

　　3.正确答案：B答案解析：indifferent，形容词，“漠然的、冷淡的”，常用indifferent to.

　　4.正确答案：B答案解析：本题考查词义辨析。arrive at：获得(结果);达到(目的)。

　　5.正确答案：B答案解析：出生在某地，要用介词in.此句话中，in which=where.