Do you want to play tennis in the park later, Betty?贝蒂，你待会儿想去公园打网球吗？That sounds good.听起来不错。What time do you want to meet?你想几点见面？Well, is 6:30 OK for you?嗯，六点半可以吗？I'm afraid not.恐怕不行。My violin lesson finishes at 6:30.我的小提琴课六点半才结束。That's not a problem.没关系。Let's meet at the tennis courts at 7:30.那我们七点半在网球场上见吧。OK, see you there.好的，在那儿见。