3 No beach in Viet Nam is longer than Tra Co Beach

-> No + N(smb/smt) + (in Place) + tobe + adj-er/more adj + than + S1 

= S1 + tobe + the + adj-est/most adj (N) (in place)

- So sánh hơn - adj 

+ Long adj : tobe + more adj + than

+ Short adj :tobe + adj-er + than

- So sánh nhất - adj

+ Long adj : tobe + the + most - adj

+ Short adj : tobe + the + adj-est

5 She is keen on collecting stamps.

-> be keen on = be interested in = be fond of + doing smt : thích làm gì

`3`.No beach in Viet Nam is longer than Tra Co Beach

`\rightarrow` So sánh hơn : S1 + be + adj-er / more adj + than + S2

`5`.She is keen on collecting stamps

`\rightarrow` Cấu trúc : S + be + keen on + V-ing / N

`\text{@ TheFox}`