the one they visited yesterday
其中they visited yesterday作the one 的定语从句,the one 是先行词.省略关系代词that.调整语序,你就会明白为什么必须带the one 了.This museum is the one they visited yesterday.
the one they visited yesterday
其中they visited yesterday作the one 的定语从句,the one 是先行词.省略关系代词that.调整语序,你就会明白为什么必须带the one 了.This museum is the one they visited yesterday.