1. A; Where is Tony ? B: He ( wait)… is waiting …… for his mother in the library.

2. Linh is busy. She (help)…IS HELPING … her brother do exercises.

3.  Dung is late for school . He (run) ……IS RUNNING……………………. so fast.

4.A: Can you help me, please? B: Sorry. I ( do) …AM DOING… my Math homework.

5. My sister is in the library. She (read) IS READING…. comics

6. It's 8.00 am. We( study)…ARE STUDYING………. English in the video room.

7. Please, help me ! I (try)…AM TRYING…….. to carry this suitcase upstairs but it's too heavy.

8.What's that noise? What (happen) IS HAPPENING… outside?

9.Who is that girl? She ( talk) …IS TALKING …. to our teacher.

10. Please don't bother(= annoy)  him! He(work)…is working……………

11. I'm sorry. Mrs lan is busy. She( have)…is having…. an interview( cuộc phỏng vấn) .

12. Silence! the teacher (look ) …is looking ….at you.

13. Do you see Mai? someone ( look) ……is looking for her.

14. Be careful! the train ( arrive ) …is arriving……………

15. Alex (always borrow) …is always borrowing….. my comics but he (never give) …is never giving……….. them back to me.

 16. Trung: Hurry up , Minh!

      Minh: Yes. I(come)…am coming…

17. Are you ready, Bill ? Yes, I (come)…am coming………………………………

18.My kids are upstairs! they ( play) …are playing………………. with their new toys.

19. Jack (wear) ……is wearing………………. suit today.

20. The weather (get ) …… is getting ……… warm this season. Let's go swimming!.

21. Why …are.. you (look) …looking…..at me like that? What's wrong?

22. Stop at once !You ( step)…are stepping ……..…. on the flowers

23.Do you understand what the teacher (say) …is saying …………..?

24. Do you know the girl who ( stand) …is standing……….. next to our teacher overthere?

25. At present, The children (swim) …are swimming ……. in the pool.

26. Don't make any noise, please! We ( have ) ……are having…………..an important meeting.

27.Can you see the man in black overthere? He ( wait)…is waiting …… for our teacher.

28. Watch out ! the bus ( come )…is coming…………..

29. Can you help me, Tony? I 'm so sorry, Mom. I ( do) ……am doing…… my homework.

30. Excuse me but you ( sit)  are sitting …………... in my place.

31. Can I borrow your pen or You ( use )…are using ….. it?

32. Can you hear the noise in the next room? They (hold) …are holding a big party.

33.  Who's that ? I don't know the girl who ( stand)  is standing. next to your mother overthere.

34. You look very worried. What (happen ) …is happening..……….?

35.A: Where's that noise ?

      B: The neighbors ( quarrel= cãi nhau )…are quarreling……..

36. It's eleven thirty. My mother ( cook)……is cooking…. lunch.

37. I don't know what is happening with Linda. She ( cry)  is crying.. in the classroom

38. Lan is away from home. She (visit) …is visiting…… her grandparents.

39. Can you see Peter? I ( look) ……am looking……. for him.

40. At present they (practise) ……are practising…………….. playing basketball.