Поставьте существительные во множественное число и произведите нужные изменения в предложении 1. This is a dog, the dog is black.

2. Is the door closed?

3. My sister lives in Lenin Street.

4. I have a child.

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1.These are dogs, the dogs are black.
2. Are the doors closed?
3. My sisters live in Lenin Street.
4. I have children.