Đề bài: Choose the best answer

CT : (+) I, We, You,They + are + V_ing + O

             She, He, It + is + V_ing + O

       (-) I, We, You,They + are + not + V_ing + O

             She, He, It + is + not + V_ing + O

        (?)  Are + I, We, You,They + V_ing + O ?

               Is +  She, He, It + + V_ing + O ? 

 Yes, I, We, You,They + are 

        She, He, It + is 

  No, I, We, You,They + are + not

         She, He, It + is + not

9. My father is working in the garden now→A
10. Mai is cooking some food at the present→A

11. Are the students doing the test right now?→B

12. Look! She is waiting for her husband in the rain→B

13. Is his brother writing a story at the moment?→D

14. The children aren't playing in the kitchen at present→C

15. Lan isn't speaking to the English teacher now→A

16. They are preparing the Christmas dinner at present →A

17. John is driving his car now→B

18. They are building a new house right now→A

                                                                      Công Thức                                                                  

S + tobe(hiện taih) + Ving (khẳng định)

Trong đó : S là chủ ngữ

Tobe là Am / is /Are

Ving là các động từ thêm ing : playing swimming

S + tobe(hiện tại) + not + Ving(Phủ định)

Tobe(hiện tại) + S + Ving (nghi vấn)

→Yes , S + tobe                                            No , S + tobe + Not