`3`.Lan's sister isn't as tall as Lan

`\rightarrow` So sánh ngang bằng : S1 + be / be not + as ... as + S2

`4`.Bottles of water are always collected by my mother

`\rightarrow` Câu bị động - Thì HTĐ : S + be + V3 / PII ( by O )

`5`.Mai is interested in arranging flowers

`\rightarrow` Cấu trúc : S + be + interested in + V-ing

`6`.You had better to drink two litters of water a day

`\rightarrow` Cấu trúc : S + had better + to V

`\text{@ TheFox}`

$1. $ Lan's sister isn't as tall as Lan

$→$ So sánh bằng : S + V + (not) + so/as + adj/adv + N/Pronoun

$2. $ Bottles of water are always collected by my mother

$→$ Câu bị động thì HTĐ : S + am/is/are + V3 (+ by Sb/ O)

$→$ Câu chủ động chia thì HTĐ thì câu bị động cũng vậy

$3. $ Mai is interested in arranging flowers

$→$ S + tobe + interested in + Ving : Thích làm gì

$→$ S + enjoy(s) + Ving

$4. $ You had better drink two litters of water a day

$→$ S + had better + V-bare : Tốt hơn hết nên làm gì

$→$ S + Should + V-bare : Nên làm gì

`@Chamian`