英语句式转换 句意不变

1、There is something wrong with my back.
(Something) is (wrong with) my back.
我的背部有毛病.
2、You don't have to worry about your baby.
You (needn't) worry about your baby.
你不必为你的婴儿担心.
3、You should stay in bed and have a good sleep.
You (need to stay) in the bed and (sleep well).
你需要躺在床上,好好睡觉.