问题
选择题
Everyone has periods in their lives __________ everything seems very hard.
A．when
B．where
C．which
D．that
答案
答案：A
考查定语从句。本题的关系词引导定语从句修饰periods，并在从句中做时间状语，因此选A。
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Everyone has periods in their lives __________ everything seems very hard.
A．when
B．where
C．which
D．that
答案：A
考查定语从句。本题的关系词引导定语从句修饰periods，并在从句中做时间状语，因此选A。