Present simple , или  future simple



6 i (lay) the table while you (dress) for the party
7 i'm not sure if this time (be) convenient for him.
9 i (return) you the tape as soon as i (record) it.
12 everything (be) ready before Frank (come)
13 i doubt if he (catch) the train if he (leave) so late
14 i (try) to find out when they (publish) our book
15 in case he (be) late he (call) us

I shall lay the table while you will dress for the party.

 I’m not sure if this time is convenient for him.

 I shall return you the tape as soon as I record it.

 Everything will be ready before Frank comes.

 I doubt if he will catch the train if he will leave so late.

 I’ll try to find out when they will publish our book.