Ответ:
1 Congratulations on your promotion! You must be very pleased.
2 I've no idea where she saved the document. It could be anywhere.
3 The 29th is a possibility. I might be free after lunch.
4 I'll do it now. I may not have time this afternoon.
5 There's someone waiting for you in reception. It could be Ms Kumar.
6 There are more and more clouds. I think it might rain rain.
7 That can't be Soraya. She's away at a conference today.
8 Import prices look stable - they shouldn't rise too much this year.
9 Lisa isn't usually late. She must be stuck in the traffic.
10 Sorry, I'm very busy - I may not come to your presentation.
11 A: 'They want to renegotiate the contract!'
B: 'You must be joking.'
12 A. They want to renegotiate the contract!'
B: 'You can't be serious.'
Объяснение: