Обведите правильный вариант ответа.
(1) Could / May not we go swimming tomorrow?
Yes, we (2) may / could but ...
Don't you want to go?
Yes, but ... I (3) couldn't / can't swim!
Really? I (4) may not / could teach you.
Ответ: 1) Could, 2) could, 3) couldn't, 4) may not