Ответ:

1 )going

2) working

3) is

4) you doing

5) am studing

6) do you want

8) are you cooking

9) am trying

10) smells

11) am going

1) am going / is working / is

2)are you doing / am studying / Do you want / sounds

3) are you cooking / am trying / smells

4) am going / want / need /  understand