题干

It was ______ we were returning home ______ I realized what a good feeling it was to have helped someone in trouble.
A.when; beforeB.when; that
C.before; whereD.how; that
上一题 下一题 0.4难度 单项选择 更新时间:2018-04-09 02:15:07

答案(点此获取答案解析)