Ответ:

4.

1. Is Jan help Alex yesterday ?

Yes ,he is.

2. Are...?

Yes ,they are.

3. Are...?

Yes, I am

4. Is ...?

Yes , he is

6. Are...?

Yes , it is

5.

1. I looking at

2. I wasn't

3. It was

4. I ate

5. Do , know

6. She lives

7. She gives

8. It is

Объяснение:

I : am. Past : was

You, We , They : are Past : were

He , she , it : is. Past : was