Употребить модальный глагол 1. i was pushing the door with all might - but it open! 2. the painting be a masterpiece, but the colours are wonderful! 3. i will be worried, so you phone me every evening 4. to save money you take a sandwich to eat on the train 5. we're going to this performance! i buy 2 tickets at a very ridiculous price! 6. you've broken my cup. you it! 7. it's impossible! he have taken the money!
1 was able to open
2 cannot
3 couldnot
4 can
5 am able to
6 could
7 could