题目

—Shall we meet tonight? —Sorry,I’m busy.How about_________day? A.every other         B.the other            C.any other            D.some other 答案：D 解析: 本题考查代词。every other day每隔一天；the other day不久前的一天；any other day任何一天；some other day改天。(1＋x)3(1＋y)4的展开式中x2y2的系数是________．