=>

24. Visits 

25. Am helping 

III/

26. (-) She didn't buy a big house last year. 

27. (?) Did she buy a new house last year? 

28. (-) We don't go to school every morning. 

29. (?) Do you go to school every morning? 

30. (-) Her classroom doesn't have twenty boys 

31. (?) Does her classroom have twenty boys? 

32. (-) It isn't often hot in summer? 

33. (?) Is it often hot in summer? 

34. (-) They aren't watching TV in the room at the moment. 

35. (?) Are they watching TV in the room at the moment? 

36. (-) He won't buy a new car next year. 

37. (?) Will he buy a new car next year? 

IV/

38. Did you go 

39. Do they go 

40. Is she doing 

41. Is going 

42. Didn't watch 

43. Are waiting 

44. Did you do

45. Will you help 

46. Have played 

47. Was

48. Was

49. Will be

50. Did you go 

24. visits  ( once a week )

25. am helping  (at this moment )

III

26.she didn't buy a big house last year

27.did she buy a big house last year ?

28.we don't go to school every morning

29.do you go to school every morning ?

30.her classroom hasn't twenty boys 

31. does her classroom have twenty boys?

32.it isn't often hot in summer? 

33.  is it often hot in summer? 

34.  they aren't watching TV in the room at the moment. 

35.  are they watching TV in the room at the moment? 

36.  he won't buy a new car next year. 

37. will he buy a new car next year? 

IV

38. did you go ( last night )

39. do they go (every day )

40. is she doing (now )

41. is going (this sunday)

42. didn't watch (last night)

43. are waiting (now)

44. did you do (last night)

45. will you help (tomorrrow )

46. have played (for two hours)

47. was (last week)

48. was  (yesterday)

49. will be  

50. did you go  (last night)