He started to learn how to play the piano in 2005 . -> He has _________________________________________ I started studying in this school four years ago -> I have They started working in this company in 2000 -> They have _________________________________ She started to read this book two hours ago . -> I have _____________________________________

Cấu trúc chung của bài :

` a) ` 

` - `  S + started / began + V-ing / to V + 1 khoảng thời gian + ago

` =`  S + have / has +`  V3 ` + for + 1 khoảng thời gian

` b) ` 

` -`  S + started / began + V-ing / to V + when + S + V-ed / V2

` = `  S + have / has + `  V3 ` + since + S + V-ed / V2

` c) `  

` -`  S + started / began + V-ing / to V + in / on / at + 1 mốc thời gian 

` = `  S + have / has + `  V3 ` + since + ` 1 ` mốc thời gian

` 1 `: He has learnt how to play the piano since ` 2005 `

` 2 ` : I have studied in this school for ` 4 ` years

` 3 ` : They have worked in this company since ` 2000 v

` 4 `: She has / I have read this book for ` 2 ` hours