2. Carol and I are old friends. We (to know) each other since we (to be) in primary school. 3. As soon as I (to get) home tonight I (to give) you a call.

1. Carol and I are old friends. We have known each other since we went in primary school.

2. As soon as I get home tonight I will give you a call.

3. If we know their place of living, we will visit them in time.

4. We have not seen them since last year.