Write_what_they_have_just_done. Помогите пожалуйста разобраться

He has just read book.

She has just come to school

I have just taken a shower

You have just swum a hundred metres

He has just given a lesson

She has just closed the window

He has just fallen down

We have just written a test

1.She has just read the book. They have just read the book.

2. He has just come from school. We have just come from school.

3. She has just taken a shower. I  have just taken a shower.

4. He has just swum one hundred metres. They have just  swum one hundred metres.

5. She has just given a lesson. They have just given a lesson.

6.He has just closed the window. We have just closed the window.

7. She has just  fallen down. I have just fallen down.

8. He has just  written a test. They have just written a test.