Помогите пожалуйста с английским

I.

1. am

2. are

3. is

4. is

5. are

6. are

7. is  

II.

1.  am sitting или am not sitting

2. is working или is not working

3. is cooking или  is not cooking

4. are writing или are not writing

5.  are learning  или are not learning  

6. is raining или is not raining

7. are painting или are not painting

III.

1. Are they having a breakfast now?

2.  What are you doing now?

3.  When is mom going shopping ?

4.  Is it snowing now?

5. Am i making tea?

6. Who is doing your homework?

7.  Where are the birds singing ?