问题
选择题
John said he had been working in the office for an hour, _______ was true.
A．he
B．this
C．which
D．who
答案
答案：C
which引导非限制性定语从句，which可指代主句的整个内容，意为“这一点”。
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John said he had been working in the office for an hour, _______ was true.
A．he
B．this
C．which
D．who
答案：C
which引导非限制性定语从句，which可指代主句的整个内容，意为“这一点”。