从语法上看,well是副词修饰do,现在后面还必须接一个词来修饰well,肯定也是填副词.
问题是问做得好不好?再修饰,也就是够不够好?从句意看,应该填写enough.
Do you do well enough?
你做得够不够好?
但从句意看,最好使用
Did you do well enough?
或者
Can you do well enough?
供楼主参考!