The girl often helps the old man _____water .A.carrying B.carries C.to carry D is carrying 分别说
问题描述：
The girl often helps the old man _____water .A.carrying B.carries C.to carry D is carrying 分别说
The girl often helps the old man _____water .A.carrying B.carries C.to carry D is carrying 说明下解题思路 还有4个选项分别用在哪里!
答
c help sb. to do sth 或者help sb. do sth