用be,do,go,don't,tell,like,love,have,play,look,cast,give,get,wal...答:A.doesn't (it doesn't matter , 没关系,it 单三,要用don't 的单数形式)3.A.do(what can I do for you?= can i help you?? 需要点什么?)B. like (I'd like sth. 我想买点---)look,does, coast B.give(好的,帮我称4斤)two kilos是两公斤 也就是4斤 ...