2. Marie
isn't at her office, so she must be on her way here. 3. I think you
need to get some advice from your colleagues. 4. Is
your car door damaged? Someone must have tried to break in. 5.
It's getting very late. I think we'd better pay the bill and
leave. 6. I might be able to help you, but I'm not sure. 7. Yes,
it's a good idea, we should consult more closely with the unions.
8. It's absolutely necessary, we must consult more closely with
the unions. 9. Lucy can't have heard the bad news. She looks
so happy. 10. Sorry, I have to go now. I don't want to be late.
11. You don't need to come to the meeting if you're busy. 12.
This invoice can't be right. It says £550 to repair the
photocopier.