1.She hasn‘t decided with ______ she should first make contact.
2.That is ______ we differ.
3.Another worry is that telecommunication systems may isolate people ______ each other.
4.If I ______ in your place， I wouldn‘t trouble him.
B. had been
C. could be
D. was to be
5._______ the moon moves round the earth is well known to all of us.
6.I doubt _______ they can complete the bridge ahead of time.
7.The question he asked was _______ I come here.
8.Too many people are indifferent _______ others‘ troubles.
9.Let us see how dictionaries are made and how the editors _______ definitions.
A. lead to
B. arrive at
C. reach for
D. approach to
10.Shanghai is the place _______ I was born.
A. on which
B. in which