Поставить в отрицательную и вопросительную форму. 1. they had their breakfast at the university dining-room. 2. he did the translation without any difficulty. 3. yesterday i skied in the country. 4. agatha christie wrote a lot of detective stories. 5. my father bought a new adventure story yesterday

1. Did they have their breakfast at the university dining-room?

They didn't have their breakfast at the university dining-room.

2. Did he do the translation without any difficulty?

He didn't do the translation without any difficulty.

3. Did you ski in the country  yesterday?

I didn't ski in the country  yesterday.

4. Did Agatha Christie write a lot of detective stories?

She didn't write a lot of detective stories.

5. Did my father buy a new adventure story yesterday?

My father didn't buy a new adventure story yesterday.