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На пример: 0) The café was open. - The café wasn’t open.
1) Ann was at the park yesterday.
2) I was in London a year ago.
3) They were ill two days ago.
4) Granny was in the garden all day yesterday.
5) My brother was naughty.
6) The baby was quiet.
7) I was shy at school.
8) Jimmy was very noisy.
9) There were many pictures in the museum.
10) Mr Johnson was a very happy man.
Ann wasn't at the park yesterday.
I wasn't
They weren't
Granny wasn't
My brother wasn't
The baby wasn't
I wasn't
Jimmy wasn't...
There weren't
Mr Johnson wasn't...