题目内容
Everyone has periods in their lives________everything seems very hard.
A.when B.where C.which D.that
A
考查定语从句。关系副词when指代先行词periods,且在定语从句中作时间状语,相当于during which。

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题目内容
Everyone has periods in their lives________everything seems very hard.
A.when B.where C.which D.that
A
考查定语从句。关系副词when指代先行词periods,且在定语从句中作时间状语,相当于during which。