病句 每句有一处错误 请说明原因

题目

病句 每句有一处错误 请说明原因
1 Today let is start from the new words
2 My father is ill. He has to stay in the bed
3 She wants to stay heath, so she eats only heath food.
打错了，是Today let us start from the new words 请问还有什么错误

答案

1 Today let us start from the new words
2 My father is ill.He has to stay in bed
3 She wants to keep heath,so she eats only heath food.