Замени выделенные выражения на модальный глагол:
can't, should, must, could, mustn't, didn't have to.
It's impossible for turtles to run fast.
Is it OK if I ask him a question?
It wasn't necessary for you to do this task.
It's a good idea to keep on a diet
It's forbidden to be noisy at night.
It's your duty to wear a school unifrm.

umos    1   24.03.2020 12:15    10