Can/Could I...? 我可以……吗？
Yes/Certainly. Yes,do please. /Of course(you may). That's OK/all right. 当然可以。
I'm sorry,but/You'd better not... 恐怕不行。/你最好不要……
Shall we play football together? All right. 好的。Let’s go to school. OK/ Good idea.Don’t open your book. 不要打开书。
May I come in? 我可以进来吗？ Come in,please. 请进。Can I have two cakes? 我能吃两个蛋糕吗？ No,you can’t. 不，你不能。Can I have one，please? 我能吃一个吗？Yes./All right. Here you are.好的。给你。Can I go with you?我能和你一起走吗？ Sure.好的
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