Jim offered _ the old man _ water. A. helped; to carry B. to help; carry C. helpoing; carry
问题描述：
Jim offered _ the old man _ water. A. helped; to carry B. to help; carry C. helpoing; carry
答
Jim offered _ the old man _ water.
A.helped; to carry B.to help; carry C.helping; carry
答案：B
解析：offer to do sth 主动提出帮助做某事
help sb （to）do sth 帮助某人做某事（to 为不定式符号,可以省略）