根據(jù)上下文，用合適的句子補全對話。
A: Hi, Jane! Can you go to the zoo with me this Saturday?
B: 1 .
A: That's too bad. What are you doing?
B: I'm having a party this Saturday. 2 ?
A: Yes, I'd love to. Who will come to the party?
B: Well, some friends. Could you come to help cook?
A: 3 ! I'm good at cooking.
B: Really? That's great!
A: 4 ?
B: How about 4:00 in the afternoon? The party starts at 6:00.
A: No problem. 5 .
B: You're welcome.
