check一下这句子对不

题目

check一下这句子对不
you'd better start stadying hard
you'd better call him
i'd better go to sleep
为什么用Go sleep?go to sleep 为什么不行呢?

答案

You'd better start studying hard.
You'd better call him.
I'd better go to sleep.
除了第一句studying单词拼错,其他都正确.
go to sleep 肯定是正确的,去睡觉.在口语中可以简化为go sleep.