Перетворіть в пасивний стан: 1)we can solve the problem. 2)they had to postpone the meeting because of illness 3)somebody might have stolen your car if you had left the keys in it. 4)they shouldn't have played the football match the such bad weather. 5)they are repairing my piano at this moment. 6)they are watching my house.

1. the problem can be solved by us
2. the meeting had to be postponed by them because of the illness
3. your car might has been stolen by somebody if the keys had been left by you in it
4.The football match shouldn`t has been played by them in such a bad weather
5. The piano is being repaired by they at this moment
6. My house is being watched by them