问题描述：
I failed my test.I am very upset and don't know 这是前提
1.how to do it2.what to do it3.how to do 4.what i should i do 最好选哪个
1.how to do it2.what to do it3.how to do 4.what i should i do 最好选哪个
问题解答：
我来补答展开全文阅读