31. The last time we went to Ho Chi Minh City was in 2009.→We haven’t.................................................................................................................
32. I started playing tennis 2 years ago.→I have.........................................................................................................................
.33. I last visited Tom 3 months ago.→I haven’t......................................................................................................................
→It’s ...............................................................................................................................
→The last .......................................................................................................................
34. I started doing homework two hours ago.→I have .........................................................................................................................
35. I started working in this company when I came back from Paris.→ I have .........................................................................................................................
36.I started writing this novel 3 months ago. (for)→Ihave.........................................................................................................................
37.She has been playing the piano since she came back from school. (when)→Shebegan..........................................................................................................
38. We bought our house 10 years ago.→ Our house...................................................................................................................
39. They have considered me as their great friend.→I............................................................................................................................
40. My sister began to learn English when she was six years old.→My sister has.......................................................................................................
31. The last time we went to Ho Chi Minh City was in 2009.→We haven’t.........gone to HCM City since 2009........................................................................................................
32. I started playing tennis 2 years ago.→I have.....................played tennis for 2 years....................................................................................................
.33. I last visited Tom 3 months ago.→I haven’t.....visited Tom for 3 months.................................................................................................................
→It’s .......3 months since I last visited Tom........................................................................................................................
→The last ..time I visited Tom was 3 months ago.....................................................................................................................
34. I started doing homework two hours ago.→I have ......done homework for 2 hours...................................................................................................................
35. I started working in this company when I came back from Paris.→ I have .........worked in this company since I came back from Paris. ................................................................................................................
36.I started writing this novel 3 months ago. (for)→Ihave.......written this novel for 3 months..................................................................................................................
37.She has been playing the piano since she came back from school. (when)→Shebegan..............playing the piano when she came back from school.............................................................................................
38. We bought our house 10 years ago.→ Our house....................was bought 10 years ago...............................................................................................
39. They have considered me as their great friend.→I........have been considered as their great friend. ....................................................................................................................
40. My sister began to learn English when she was six years old.→My sister has......learned English since she was six years old.................................................................................................
