Письменно.

1. Ann was wearing a black jeans.

2. I’m going to buy a new pyjamas.

3. Has the police arrived yet?

4. Many people has given up smoking.

5. This scissors is not very sharp.

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1. Ann was wearing black jeans

2. I'm going to buy a new pyjamas (здесь всё правильно)

3. Have the police arrived yet?

4. Many people have given up smoking.

5. These scissors are not very sharp.

Объяснение:

сделай ответ лучшим, если не сложно :)