11.She hasn‘t decided with ______ she should first make contact.
A. who
B. whom
C. how
D. which
12.That is ______ we differ.
A. that
B. where
C. what
D. whether
13.Another worry is that telecommunication systems may isolate people ______ each other.
A. from
B. for
C. with
D. to
14.If I ______ in your place， I wouldn‘t trouble him.
A. were
B. had been
C. could be
D. was to be
15._______ the moon moves round the earth is well known to all of us.
A. That
B. What
C. When
D. As
16.I doubt _______ they can complete the bridge ahead of time.
A. whether
B. that
C. why
D. what
17.The question he asked was _______ I come here.
A. that
B. how
C. what
D. because
18.Too many people are indifferent _______ others‘ troubles.
A. with
B. to
C. of
D. about
19.Let us see how dictionaries are made and how the editors _______ definitions.
A. lead to
B. arrive at
C. reach for
D. approach to
20.Shanghai is the place _______ I was born.
A. on which
B. in which
C. when
D. that
参考答案
11.正确答案：B
答案解析：with用于与make contact搭配。本题使用的短语是make contact with sb.whom在本句中引导的句子做介词with的宾语。由于位于介词后面，所以用宾格形式whom.
12.正确答案：B
答案解析：where在本句中引导表语从句。句意：这就是我们的不同之所在。
13.正确答案：A
答案解析：isolate sb/sth from sb/sth是固定搭配。
14.正确答案：A
答案解析：本句是对现在的虚拟，所以条件状语从句用过去时。同时在虚拟语气中，一般不用was而一律用were，所以答案是A.
15.正确答案：A
答案解析：本题的考点是：That引导的主语从句，注意that引导的主语从句在句中只起到连接作用，没有意义，也不做任何成分。
16.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。
17.正确答案：B
答案解析：这里表示的是：来的方式，要用how.
18.正确答案：B
答案解析：indifferent，形容词，“漠然的、冷淡的”，常用indifferent to.
19.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)。
20.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.
