`\text{4, We have to take off our shoes when we go inside the pagoda.}`

`\text{→ + have to + V-inf: phải.}`

`\text{    + take off (v): cởi bỏ.}`

`\text{    + go inside: vào trong.}`

`\text{ 5, Nowadays, teenagers rely more on technology than in the past.}`

`\text{→ + rely on: phụ thuộc vào.}`

`\text{6, Life in the countryside has changed a lot over the past ten years.}`

`\text{→ has changed: thì hiện tại hoàn thành.}`

`\text{- Công thức: S + have/has + `V_3`}`

`\text{    + over the past ten year: trong mười năm gần đây.}`

$\color{turquoise}{\textit{#thienbinhvuive}}$

`@ N`

`4` We have to take off shoes when whe go inside the pagoda.

`->` have to + V-inf: phải làm gì

`5` Nowadays, teenagers rely more on technology/ than in the past.

`->` rely + on: phụ thuộc vào gì

`6` Life in the countryside has changed a lot over the past ten years.

`->` dhnb: has changed `->` htht

`->` htht: S + have/has + PII