0 RUTH: I think Ann's brother is in the army.
    JAMES: He `color(red)"can't"` `color(green)"be a soldier"`; he's only fifteen.

1 BOB: What are you going to do next summer?
    SUSAN: I don't know. We `color(red)"might"` `color(green)"go to Portugal"` but it's not certain yet.

2 FRED: Mike's new flat is all electric - kitchen, heating, everything.
    PETER: That `color(red)"must"` `color(green)"cost a lot of money"` in electricity bills.

3 SAM: Is Mary coming to see us this week?
    SALLY: It depends on her work. She `color(red)"might"` `color(green)"come this weekend"` if she finishes the project that she's doing.

4 CAROL: Have Brian and Kim got any children?
    TOM: Yes, they have two children, but they `color(red)"can't"` `color(green)"be very interested"` in them, because they never talk about them.

5 ANDY: Do you see your new neighbours very much?
    SARAH: No, they `color(red)"must"` `color(green)"work long hours"` because they are hardly ever at home.

6 PAUL: Fred's gone out, hasn't he? Where has he gone?
    ANN: I don't know. He `color(red)"might"` `color(green)"be at the gym"` or he `color(red)"might"` `color(green)"also be at the shops"`.

7 TIM: Is Jane very rich?
    EMMA: Oh yes, she has a flat and a sports car. She `color(red)"must"` `color(green)"earn £60,000 a year"` at least.