Поставте слова вместо точек (will/won't, may/might) Students .... learn everything from computer programs.
It .... be long before this number gets higher.
We .... need to have teachers in the classroom.
How .... computers change in the future?
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1)may

2)might

3) won't

4)will

Объяснение:

1) очевидно, можно поменять на might, но разницы нету, это слова синонимы

2)тоже что и в первом но можно поменять на may

3)ничего другого не подходит

4)это вопрос, и ничего кроме will там стоять не может + не будет подходить по контексту

1) we have   known each other for 20 years.

2) my friends have been learning english for four years.

3) have you learned these verbs?

4) we had never been to japan, but we always wanted to go there (to visit this country).

5) he   is riding   his bike the whole evening!

6) anna doesn't   work hard last time. (anna hasn't   worked hard recently).

7)   she hasn't been writting poems for 3 years, but she has written many poems during her life.

8) why are you so dirty? - i was playing with rex in the garden. (или:     i played with rex in the garden)

9) how long have you been waiting for masha?