A-A+ Bob Geldef and his friends did all that they c 2022-08-06 13:57:35 问答库 阅读 179 次 问题详情 Bob Geldef and his friends did all that they could ______ the poor in Africa.A.helpB.to helpC.helpingD.be helped请帮忙给出正确答案和分析,谢谢! 参考答案 正确答案:B