题目内容：

用方框中所给单词的适当形式填空，使对话通顺、正确。每词仅用一次（每空一词）。

 

S1: Can you come to my party on Saturday afternoon?

S2: Sorry, I can’t. I have __1. to go to the cinema that afternoon.

S3: I’m afraid not. I have a _2._. I have to see a dentist.

S4: Sorry, I’m not __3._ until Saturday evening. I am going to hang out with my cousin.

S5: I’m sorry, I’m tired. I just _4._ home this morning after a long journey. I want to rest.

S1: OK. Maybe another time. What about you?

S6: Sure, I’d love to.

S1: 5.__! Catch you on Saturday afternoon!