Mayi help you 是一般疑問句,所以對Mayi help you 的回答或者是yes,或者是no.在你的句子里面,答案應該是yes,please.那個第一題答案是是thank for your help你好。thank you for your help是不可能的。1 - May i help you?- Yes, please. i want a piece of sports shoes 看見了嗎？這就是yes please的基本用法。let 'stake taxi .oh we can't為什么we shouldn't不行》你好。thank you for your help是不可能的。1 - May i help you?- Yes, please. i want a piece of sports shoes 看見了嗎？這就是yes please的基本用法。2 A ： ok , here are the books you need for your workB:thank you for your help.請注意這里的對話。let 'stake a taxi .oh we can't為什么we shouldn't不行》--------其實，這兩個回答都是對的，問題是你的語境是什么？以后多提問一些有語境的問題，好嗎？嗯，問題是we are tired .let's take a taxi home ,oh. we........,it is near our home .你說填什么呢？we shouldn't/ needn't /don't have to .