2. Mary ( walk) ___walked_______ to work on foot since yesterday .
23. My father ( watch ) ______have watched____ TV for 3 days.
24. They ( not be ) ________weren't__ at home since yesterday.
25. _______Have___ You (be ) _____been_____ to the zoo ?
26. They ( live ) _____have lived_____ in Thanh Hoa City since 2001.
23. I have just (decide)…………decided……………………… to start working .
24.She (come)……………has come…………….… here already.
25. He (be)……………has been……………….…. at his computer for seven hours.
26. Have You ever ………been………………………..(be) to New York?
27. Has Lan ( do) ………….…done…………………her project yet?
28. Have You ever (eat)………eaten…..……….. Sushi?
29. I (not work)………haven't worked………………… here for three years.
30. We(go)………have gone……..to that village to do volunteer work several times.
31. My father (not play)……….. ……………hasn't played………..any sport since last year.
32. I (not/have)………………haven't had……………. one since Thursday.
33. The students ( not go ) ______haven't gone_____to school since Sunday
34. The Greens(be)……has been………to many countries in the world so far.
35. We (go)………………had gone……………..to that village to do volunteer work last week
36. My uncle (move)………………moved………………………………to Da Lat in 2005.
37. My parents (buy)…………bought…………………this house 20 years ago.
38. We (not take)…………………didn't take………. photos when we came there .
39. The students ( not be)………weren't…………………….. at school on last Monday.
40. Lan (be ) ………………was…..……..at home when we went out.
41. Where were you (be)…………………………… last Sunday?
42. DID They (help) ……help………………….the elderly people cook food some days ago?
43.Lan and her friends (rehearse) ………is rehearsing…………….. a play at the moment (at present/ now...)
44. He (watch) …………watches……… TV every day and (not like) ………….doesn't like.………doing anything else. He (be)……is………….. lazy.
45. Tomorrow some friends come to my house. I (cook) ……………will cook………..chicken.
46. She often (go) .....................goes........................ to the market with her mother every weekend.
47. We (visit) ...................will visit....................... Hue next month.
48. My younger sister (collect) ....................collected................ dolls two years ago.
49. .................Have......... you ever (do) .............done............... volunteer work ?
