с английским 7 класс. Задания 1,2,3.

1. Are you waiting for the bus at the moment? Здесь используется Present continuous, потому что есть указатель времени - at the moment 
2. It snows every winter in my country. Используется Present Simple, потому что EVERY WINTER - действие повторяющееся, каждый год, каждую зиму.
3.  What is he doing now? - NOW - указатель на Present Continuous.
4. How many Noble Prize winner there had been? - Здесь уже Past Perfect
5. ??? 
6. Have you been at school yesterday? - yesterday указывает на Present Perfect

1.By half past eight they won't have had (not,have) supper yet.

2.The birds will have flown (fly) away before winter comes.

3.In five years' time we will have finished (finish) school.

4.By this time next week Jack will have taken (take) his exam.

5.I hope it will have stopped (stop) raining before we have to go.

6.I don't think my parents will have bought (byu) a computer by the end of the week.

7.George won't have memorized (not,memorize) al the idioms by Friday.

8.The Rogers will have finished (finish) building their new cottage before summer.

9.The party won't have started (not,start) before we get there.

10.He (not,come) back by supper time