短文改错 过去时为主 However,I did not know him.While I was thinking about that I_____
问题描述：
短文改错 过去时为主 However,I did not know him.While I was thinking about that I_____
should do,the boy ran far away me.It was not_____possible for him to hear me.I felt sorry for not help him____
答
1.that -- what
2.far away me-- far away from me
3.correct
4.help-- helping