`I`.

`1`.It is about 300km from Ho Chi Minh City to Phu Quoc Island

`\rightarrow` Khoảng cách : It is about + distance + from N1 + to N2

`2`.Traffic rules should be obeyed strictly by road users

`\rightarrow` BĐ `-` Should : S + should be + V3 / PII ( by O )

`3`.If you are careful , you won't hurt yourself

`\rightarrow` CĐK Loại 1 : Diễn tả hành động có thật ở Hiện tại

`-` If - clause : Thì HTĐ : S + Vs / es 

`-` Main - clause : Thì TLĐ : S + will + V

`\text{# Kirigiri}`

1. It is about 300km from Ho Chi Minh City to Phu Quoc

GT: Khoảng cách: The distance from...to... is about...=It is about....from....to...

2. Traffic rules should be obeyed strictly by road users.

GT: Câu bị động: S+should be+V(PII)

3. If you are careless, you'll hurt yourself.

GT: Câu điều kiện loại 1: If+S+V(s/es), S+will/shall/can+V(nguyên thể)