Richard offered to helpdo the housework ____ room and broad here in the comingweek.
问题描述：
Richard offered to helpdo the housework ____ room and broad here in the comingweek.
A.by means of B.in exchange for C.in return for D.in charge of
为什么选B而不选C ,其他选项最好也说一下排除的理由.
答
C的意思是：做为回报,作为答谢.eg.：In return for Chineselessons ,JoeteachesmeEnglish.B的意思是：作为交换eg.：Igaveherawatchin exchange foraskirt.A.by means of 意思：用…...