问题
选择题
An idea suddenly came to J.K. Rolling ________ she could write a book about people living in the magic world.
A．if
B．when
C．that
D．which
答案
答案：C
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An idea suddenly came to J.K. Rolling ________ she could write a book about people living in the magic world.
A．if
B．when
C．that
D．which
答案：C