1.How long have you used this car?

= When __________________________

2.How long ago did you buy this house?

= How long have ______________________

3.This is the best book I have ever had

= I have _______________________________

`1,` When did you start using your black car?

- When + did + S + begin/start + to V/V-ing + O?

= How long + has/have + S + Vpp + O?

`2,` How long have you bought this house?

- How along ago + did + S + V-inf + O? : Cách đây bao lâu...?

= How long + has/have + S + Vpp + O?

`3,` I have never read such a good book before.

This is the best + N + S + have/has + ever + P2

= S + have/has + never + P2+ such + a/an + good + N + before

`1,` When did you start using this car?

`@` How long + has/have + S+ V-pp+O?

`=` When + did+S+ start/begin+V-ing+O?

`2,` How long have you bought this house?

`@` How long + has/have + S+ V-pp+O?

`=` How long + ago + did+S+ V-bare inf +O?

`3,` I have never had such a good book before.

`@` This is the + short adj -est/ most + long adj N-số ít+ S+ has/have+ ever+V-pp.

`=` S+ has/have+never+ V-pp+such + a/an+ Adj + N -số ít +before.