Combine each pair of sentences, using the connector given

Combine each pair of sentences, using the connector given.

1. I will call you I arrive at the station.( as soon as)

→  _____________________________________________________________________ .

2. We were planting trees. our friends were collecting rubbish, (while)

→  _____________________________________________________________________ .

3. the choir practised for half an hour, they went on stage, (Before)

→  _____________________________________________________________________ .

4. We have to follow the steps,  we make a conical hat.( when)

→ _____________________________________________________________________ .

5. my father taught me how to use the computer , he bought one for me. (Before)

→  _____________________________________________________________________ .

6. I read my favourite book, I went to bed. (After)