下面句子有一处错误，请将改正后的答案写在横线上（每空一词）
I still remember the place which I met her for the first time.____

请填入适当的引导词使句子变成语意通顺的复合句（每空一词）
This is the village ____ he visited last year.

请填入适当的引导词使句子变成语意通顺的复合句（每空一词）
The teacher wants to know the reason ____ he was late.