Решите 4,5,6 номера. 4 задание - изменить подчёркнутое слово.5-выбрать правильный вариант.6- выбрать один из трёх глаголов

4. a. couldn't
b. couldn't
c. had to
d. didn't have
e. couldn't

5. a. can't
b. might
c. must
d. can't
e. might

6. a. might
b. can't
c. might
d. must
e. might