1 Underline the correct words.
1 They have flown / flew in a plane twice.
2 When she met Paul he had / have already started work.
3 If we have / had more money, we would go on holiday.
4 They must to work / work harder.
5 We haven’t been to Cairo yet, have / did we?
6 This painting was bought / buy for £1 million.
7 This is the first time I have / have been taken an exam this year.
8 We’ve been here for / since five o’clock.
Объяснение:
