Question

Put the verbs in brackets into the Present Simple or the Future Simple. All sentences refer to the future. Помогите пожалуйста, только правильно, заранее спасибо!!!
1.When he (to return) home, he (to call) on us.
2. If I (to see) him, I (to tell) him about their letter.
3. We (to gather) at our place when my brother (to come) back from Africa.
4. I (to sing) this song with you if you (to tell) me the words.
5. I hope you (to join) us when we (to gather) in our country house the next time.
6. What you (to do) when you (to come) home?
7. If I (to stay) some more days in your town, I (to call) on you and we (to have) a good talk.
8. He (must go) to the library very often when he (to be) a student. 9. If I (not to return) from the theatre too late, I (to ring) you up. 10. You (to pass) many towns and villages on your way if you (to decide) to come to our summer cottage

Answer 1

he returns,he will call on us
see him,i will tell
will  gather ,my brother comes 
will sing,tell me
will join,we  gather.
what will you do,when you come 
i stay,i will call
he will has to go to the ,when he is a student
dont return,i shall  ring  you up
you will pass,decide