He often o to help me work out the problem.根据句意和首字母写单词.是要填那个以o为开头字母的单词。
问题描述：
He often o to help me work out the problem.
根据句意和首字母写单词.
是要填那个以o为开头字母的单词。
答
对不起我没看清楚 offer
答
offer
答
offer 主动帮我