18. She started to learn english in 2003 She has.....................

`18`.She has learnt English since `2003`

`\rightarrow` Thì HTHT : S + have / has + V3 / PII

`\rightarrow` `DHNB` : since

`\rightarrow` Since + Khoảng thời gian

`\text{@ Tails347}`