1. Przekształć podane zdania używając czasowników modalnych,
Przykład:
I'm sure she knows him well. She must know him well.
1. It's possible that he works really hard. He...
2. I'm sure Paul isn't an engineer. Paul....
3.I'm sure
he didn't know the truth. He ...
4.Perhaps they have missed the
bus. They...
5. It's possible they didn't receive our message. They.....​