Type one of the conjunctions: if, as soon as, till, until, before, when to complete the sentences

I'll come to you [ ] my classes are over.

1. We shan't go skiing
   [ ] it is very cold tomorrow.
2. They will phone you
   [ ] they arrive home.
3. He won't go to work
   [ ] he is ill.
4. Jane will stay here
   [ ] her sister comes back.
5. I'm sure I'll finish my job
   [ ] you are at home.
6. Please write to me
   [ ] you can.
7. They will live in Canada
   [ ] autumn comes.