`33`It's about 300 km from HCM city to Phu Quoc.

`=>` The distance from place `1` to place `2` is ..... `=` It is ..... from place `1` to place `2`

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

`=>` S+should +V: nên làm gì

`35` Renewable energy will be used in the future

`=>` DHNB:in the future

`=>` S + will be + Vpp + (by O)

`36`I used to walk to school when I was a student.

`=>`S + used to + V + O: Đã từng

`37`Solar energy will be used in the world by many countries.

`=>`S + will be + Vpp + (by O)

`38`How will you travel from one place to another ?

`=>`Thì TLĐ ( NV ) : Will + S + V ?

`39`We will reduce the use of electricty to save our energy

`=>`Thì TLĐ : S + will + V

`40`There are always traffic jams during rush-hours

`=>`Thì HTĐ ( ĐT Tobe ) : S + is / am / are + adj / n