английский вставить слова или предложения

1. could

2. must not

3. could not

Объяснение:

you can't fly, can you? - yes, i can. / no, i can't.

your favourite subject is maths, isn't it? - yes, it is. / no, it isn't.

you are reading a book now, aren't you? yes, i am. / no, i'm not.

this autumn isn't cold, is it? yes, it is. / no, it isn't.

they are in london, aren't they?   yes, they are. / no, they aren't.

поставь "лучшее решение", если несложно.