why not（ ）dinner with us?

why not（ ）dinner with us? Why not（）for dinner with us?选择go did you goto godo you go请问选哪个啊 （ ）I don't want to have dinner tonight.A,yes,please B,why not?C,that's all right D,Ok,go ahead why not go out for a walk after dinner?改同义句 why not ___this evening?eat dinner eat out to eat to eat out Why don't you____ ____ (散步）after dinner? why not why not Why Not why not Why or why not? why or why not Why or Why not why not等于why()() going out for dinner this evening?A.Let's B.Why not C.Shall we D.How about 剑桥英语三级试题（再次感谢） 求57到71题57.______ you _______ (have) a good time at the cinema last night?58.I ______ (show) you the photo tomorrow.59.Why not ______ (go) to the park wit me tomorrow?60.It‘s very far.You had better _ 2012年9月份考试大学英语（1）第二次作业( ) you have worked out the hard problem,you shall have a rest first.(本题分数：1 分.) A、 By now B、 Ever since C、 Now that D、 In that 2.( ) tonight,why not drop in and play chess wit -I don't know what to wear for the dinner party.-______jeans and a blue shirt.A:why don't B:why not C:what about最后一句标点是？号 为什么why not 不行？