`16.` Are 

`17.` isn't walking

`18.` Are 

`19.` making

`20.` aren't linking

`21.` watching 

`22.` taking 

`23.` explaining

`24.` are you doing

`25.` not sitting

`26.` isn't lying

`27.` Are

`28.` catching 

`29.` Ruth asking

`30.` are driving 

Ta có cấu trúc hiện tại tiếp diễn sau:

`(+)` S + am/is/are + V_ing

`(-)` S + am/is/are not + V_ing

`(?)` Am/Is/Are + S + V_ing 

*Form : Present Progressive : (+) S + am/is/are + V-ing

                                                (-) S + am/is/are not + V-ing

                                                (?) Am/Is/Are + S + V-ing 

16. Are they trying to help ?

17. She isn't walking to the center of the town

18. Are the policemen running to the bank ?

19. Look ! Steve's mother is making a sandwich

20. You aren't linking the words correctly

21. We are watching a film now

22. We are taking nice photos

23. Is Mr.John explaining the exercise ?

24. What are you doing here ?

25. I amnot sitting on the sofa at this moment

26. The cat isn't lying on the carpet

27. Are they listening to the radio now ?

28. The eagle is catching the mouse

29. Why is Ruth asking for money ?

30. The boys are driving into the pool at the....

CHÚC BẠN HỌC TỐT!