rewrite sentences with the same meaning.

`10.` I started learning English `10` years ago.

`11.` When did you have this car?

`12.` They have studied Spanish since they were in grade `4`.

`----------------`

`-` Ta có cấu trúc viết lại câu ở trong bài:

`-` S `+` started/began `+` V-ing/to V `+` in/at ... `/` ago `+` ...

`=` S `+` have/has `+` Ved/C3 `/` have/has `+` been `+` V-ing `+` since/for

`-` How long `+` have/has `+` S `+` Ved/C3 `+` …?

`->` Mất bao lâu để ai đó làm gì ...?

`=` When `+` did `+` S `+` V-inf `+` ...?

`->` Ai đó bắt đầu làm gì từ khi nào ...?

`10.` I started to learn English `10` years ago.

`11.` When did you have this car?

`12.` They have studied Spanish since they were in grade `4.`

`----------`

`-` S + started/began + to V/V-ing + time + ago `|` when + clause

`=` S + have/has + P2 + for + time `|` since + clause

`-` How long + have/has + S + P2?

`=` When + did + S + V-bare?