1.It is 3 days since we last talked with her.

2.They have taught english since 2000 (started)

3.I have never donated blood before.

4.She began working for this company 5 months ago (worked)

1.We/donate books for street children/for 2 years.

2.They/visir/thier grandparents/last Sunday?

3.Children/enjoy/watch/cartoon/beacause/it/be/funny.

4.I/not/see/him/since/last month.