1. Winter is the coldest season of the year.
Is winter the coldest season of the year?
Winter is not the coldest season of the year.
Зима - самый холодный сезон (время) в году
2. The days are long in summer.
Are the days long in summer?
The days are not long in summer.
Летом дни длинные.
3.I am his sister.
Am I his sister?
I am not his sister.
Я его сестра.
4. She has got a new car.
Has she got a new car?
She has not got a new car.
У неё есть новая машина.
5.We have many lessons on Monday.
Have we many lessons on Monday?
We have not many lessons on Monday/
У нас много уроков в понедельник.