单选题
7.
George and Jack did not like each other at first, but ______ they became good friends.
A、
at a time
B、
for some time
C、
in time
D、
on time
【正确答案】
C
【答案解析】
A．每次，逐一；B．一段时间；C．及时，最后，终于；D．准时。
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