Fill in missing prepositions.
1. my friend is curious the history of ancient rome and greece.
2. who is fond playing volleyball?
3. lots of children are afraid going to the dentist.
4. i can always rely my best friend.
5. my parents are pleased my results at school.
6. she is thinking going to the university of foreign languages.
7. what are you busy
1) of
2) of
3) of
4) to
5) of
6) of
7) of