When she knew that she got the highest mark in the exam,she told her mom cheerfully.是什么句型?

问题描述:

When she knew that she got the highest mark in the exam,she told her mom cheerfully.是什么句型?

时间状语从句
当她知道她在这次考试中得了最高分时,她高兴地告诉了她的妈妈再问问,既然是时间状语从句,为什么主从句要用逗号分开呢?原本就有的固定句型,而且状语可以放在任何位置的你可以把句子放在后面就不要逗号了