（1）、A: You'd better go and buy the tickets for the concert as soon as possible, or you'll  .
B: Thanks. I will do it this afternoon.
A: So where are you going on holiday this summer?
B: I'm not sure really. It's still  .
A: Thank you for such an interesting talk. Could I ask some questions?
B: Yes, of course. Please  .
A: The bus sounds noisy and the seats don't feel comfortable. What do you think?
B: It's just  .
A: I'm really nervous. I'm going to ask Sally to marry me tomorrow.
B: Oh, fantastic! Good luck!
A: Thanks, but remember not to tell anyone else.
B: Don't worry. I won't  .