In order not to forget the date (when)【he can play games with his friends】
括号内是定语从句,主语是he,谓语can play with,宾语 his friend,缺少状语,副词做状语,所以用关系副词when引导.
which是关系代词,用来做宾语.这里不缺少宾语.
In order not to forget the date (when)【he can play games with his friends】
括号内是定语从句,主语是he,谓语can play with,宾语 his friend,缺少状语,副词做状语,所以用关系副词when引导.
which是关系代词,用来做宾语.这里不缺少宾语.