I have entered —— the examination but I don‘t want to take it 横线上可否加for有资料参考最好

I have entered —— the examination but I don‘t want to take it 横线上可否加for有资料参考最好
I have entered —— the examination but I don‘t want to take it 横线上可否加for
有资料参考最好

I have entered —— the examination but I don‘t want to take it 横线上可否加for有资料参考最好
可以
enter for:报名参加（比赛等）

可以，我问了大学教授