1.когда? в 407 году-да 2.+ 3.-(англы и саксы) 4.+ 5.+ 6.- 7.+
I will go to the theatre if I go out tonight.
I will be angry if you get back very late.
We'll see each other next month if we don't see each other next month.
If they come, I will be surprised.
We'll be late if we wait here.
We will go to Italy if we go in holiday thus autumn.
We won't have a picnic if the weather doesn't improve.
Peter and Jack will go to the party if they are invited.
I will be tired tomorrow if I don't go to bed early this evening.
We will feel sick, if we eat all these cakes.
You can't see him at 9 o'clock because he has an appointment.