Ответ:
- We shall cross the street when the green light is on.
- It will take you only 10 minutes if you go by the metro.
- You'll be late if you do not hurry.
- We'll have dinner as soon as it is ready.
- You'll have a good time if you go to the sea coast.
- I'll know something about London after I take a trip there.
- He'll send us a letter when he arrives.
- They'll buy the house if they like it.
- I'll ask a policeman in the street if I get lost.
- We'll buy a guide book before we go to London.
Ответ: смотри решение в формате HTML.
Ты молодец! У тебя всё получится!