A: Hi, Mary. C{#blank#}1{#/blank#} you come to my housewarming party on Saturday afternoon?

B: I'm sorry I can't. I h{#blank#}2{#/blank#} to help my parents on the farm.

A: That's too bad. How about Jim?

B: No, he can't. He m{#blank#}3{#/blank#}go to soccer practice. His school team has a big match (比赛) on Saturday.

A: Wow! He is a great player! Could you come to lily party, Linda?

C: Oh, no, I c{#blank#}4{#/blank#}. I have to go to acting class.

A: What about you, Tina?

D: Oh, I'd love to, but I m{#blank#}5{#/blank#} have to go to the doctor with my mother. She is ill (不舒服).

A: What a pity (真遗憾)! Maybe another time.

D: Sure. Thanks for asking me.