Question

Present Simple or Future Simple.

We...(leave)  as soon as he...(arrive)

He says he...(telephone) as before he...(leave) the airport

She.....(stay) at home until sha...(feel) better

When....(you\visit)them? Probably next week

Answer 1

We will leave as soon as he  arrives.
He says he will  telephone as before he  leaves the airport. 
She will stay at home until she feels better. 
When will you visit them? Probably next week.