I . Fill in each blank with a suitable preposition
1. Are you keen ............... reading ?
2. What are you thinking ...... ?
3. What do chidren often insist ............ ?
4. He is crazy .............. making toys
5. Are you busy ............ your homwork ?
6. She is acustomed ......... getting up early
7. Are you afraid ............. snakes ?
8. They are enthusiastic .................. helping other people
I . Fill in each blank with a suitable preposition
1. Are you keen .......on........ reading ?
2. What are you thinking ...about... ?
3. What do chidren often insist .....on....... ?
4. He is crazy ......of........ making toys
5. Are you busy ......with...... your homwork ?
6. She is acustomed .....to.... getting up early
7. Are you afraid .....of........ snakes ?
8. They are enthusiastic .......about........... helping other people