She has already visited the place.His father used to work in

She has already visited the place.His father used to work in the place.（合并为一句）
Our school organized the speech competition.(改为被动语态)
Lots of foreigners come to China to visit the Great Wall every year.to visit the Great Wall进行提问

She has already visited the place where his father used to work 或 She has already visited the place which his father used to work in 或 She has already visited the place in which his father used to work【 注意which和where的用法和区别】
The speech competition was organized by our school
Where do lots of foreigners come to China to visit?因为划线部分是去的地方,所以提问是对地点用where