Correct the sentences:
1. If the weather will be fine, we will go to picnic tomorrow.
2. When she will come, we have listen to music on this CD.
3. If I go to St. Petersburg, I visit Nevsky Prospect, Winter Palace and St.Isaac’s Cathedral.
4. I will go to the hospital, if I am not well. 5.I’ll prepare dinner, if my mother ask me. 6. If he invites me to the party, I can not go there.