Chuyển đổi từ hiện tại hoàn thành sang quá khứ đơn (và ngược lại)

10) However, I (have).................... no trouble with my car since then.

11) I (have ) ………………..this toy since my birthday.

12) We (live )………………….in HN for ten years now and like it a lot.

13) The last time I (go) ……………………to HN was in May

14) When my parents were on holiday I ( stay)……………… with my aunt for a week

15) I (not see ) my son for ages .He (not visit ) ……………………..me since May

16) Tom ( be) …………….to HN twice .He loves it very much

17) My sister (work ) ……………………for an enterprise for two years .That was after college

18) I (move)……………… to HN in 2001 .I (be ) ………….there a long time now

19) It was so cold today that I (wear)…………… a sweater at school

20) So far this month there (be )……………………. three robberies in this street

21) When I was young I (meet )…………..him three times

22) In the past few years ,it (become )………….. more and more difficult to get into university

23) I (feel )………………better since I ( live) ……………….here

24) Since I (be ) ……………………in this city I ( not see)…………… him