change the voice in the following sentences:
1. Post this letter.
2. Are you doing your work?
3. The bird was shot by the hunter.
4. Ram does not like Mohan.
5. Gopi invited you.
6. Someone has stolen my purse.
7. Stand up.
8. Who taught you English?
9. People speak Bengali in Bengal.
10. A line was drawn by Harry.
PLS. ANSWER QUICKLY.
pls. answer now cause I have my english exam tommorow.