1.May I?我可以吗?常用句子:May I come in?我可以进来吗?May I help you?您需要帮忙吗?May I ask you a question?我可以问你一个问题吗?搭配:接动词原型。例句:May I speak to Vincent?请问文森在吗?May I use your telephone?我可以借用你的电话吗?May I have a seat?我可以坐下吗?功能: 用这些话显得很有教养。2. Can you ?你能吗?常用句子:Can you help me?你能帮帮我吗?Can you do me a favor?你能帮我个忙吗?Can you please tell me where is the bus stop?你能告诉我公共汽车站怎么走吗?搭配:接动词原型。例句:Can you please shut the door?你能把门关上吗?Can you translate the sentence into Chines