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
考察定语从句关系词用法，根据前置词period期间，可知关系应用when当……时候，in their lives为插入语，故选A。
搜题请搜索小程序“爱下问搜题”
Everyone has periods in their lives ______ everything seems very hard.
A．when
B．where
C．which
D．that
答案：A
考察定语从句关系词用法，根据前置词period期间，可知关系应用when当……时候，in their lives为插入语，故选A。