我不知道该怎么做英语怎么说

Question

我不知道该怎么做英语怎么说

Answer 1

I don't know what to do. 或者 I don' know what should I do前面的是简单句，后面的是复合句

Answer 2

I don't know how can i do

Answer 3

i don't know what to do

Answer 4

没话讲