Odpowiedź:
ex1
1 good at
2 keen on
3 worried about
4 fond of
5 scared of
ex3
1 Jan has ridden the tallest rollercoaster in the world.
2 Have you ever broken your wrist?
3 I have never met a famous singer.
4 Has your grandma flown a helicopter?
5 They haven't done their homework.
ex5
4
1
3
7
2
6
5
