`1`. We think we will take a boat trip around the islands.

`-` S + think + S + will + V(bare) + O

`-` a + N(số ít)

`2`. The tigers roared louldly when he was at the zoo

`-` S + V(ed/C2) + ...

`-` when `->` chỉ khi nào, lúc nào,...

`-` N(số ít qkđ) + was

`-` at + địa điểm cụ thể

`-` roared `->` quá khứ đơn của roar

`3`. Do you practise listening by watching English cartoon?

`-` Do + S + V(bare) + O?

`-` practise + V-ing

`-` do SOMETHING + by + do SOMETHING : làm cái gì đó bằng cách làm cái gì đó

`-` by + V-ing

`1,` We think we will take a boat trip around the islands

`@` S `+` think/believe/... `+` S `+` will/shall `+` V

`2,` The tigers roared loudly when he was at the zoo

`@` roar: gầm

`@` V `+` adv

`3,` Do you practise listening by watching English cartoon?

`@` practise V_ing: luyện tập làm gì 

`@` by `+` V_ing: bằng cách nào đó

`#TD`