Question

We have just (to order) a three-course dinner.
Peter (to sunbathe) since 10 o'clock this morning
What are Andrew and David doing? - They (to work) in the garden for three hours
Your travel agency (to sell) separate services ? - Yes, it (to do)

Answer 1

1) We have just ordered.......2) peter has been sunbathing since
3)they have worked in
4)selling ......-yes it does