1. … I offer you a cup of tea?
2. – I (must, to go) to the office every day?
– No, you ( … ).
3. – May I invite businessmen to the conference room?
– No, you ( … ). It (must, to be cleaned).
4. When you (can, to look through) it?
5. –– Why are you so late?
– Because I (to have to phone) the British company.
6. – Why did Mr. Smith go to London last month month?
– He (to be, to sign) a contract there.
7. If the manager (not to have, to stay) late at the head office today he (to be able, to meet) Mr. Smith.
8. We received your offer 5 days ago and we (cannot, to study) it.
9. Who … make good coffee?
10. You (to be, to contact) Blake & Co next Monday.