`1`.Lan isn't old enough to ride a bike to school

`\rightarrow` Enough : S + be / be not + adj + enough ( for O ) + to do sth

`2`.Mr.Nam is going to travel to Hue next week

`\rightarrow` Thì TLG : S + be + going to do sth

`\rightarrow` Đặc điểm nhận dạng : next

`3`.My father used to take me to the zoo when he was alive

`\rightarrow` S + used to + V : Đã từng

`4`.Mrs.Lan ought to go to the dentist

`\rightarrow` Cấu trúc : S + ought to do sth

`5`.My brother isn't old enough to drive a car

`\rightarrow` Enough : S + be / be not + adj + enough ( for O ) + to do sth

`6`.We are going to join in an English club

`\rightarrow` Thì TLG : S + be + going to do sth

`7`.My father used to take me to Da Lat City when he was alive

`\rightarrow` S + used to + V : Đã từng

`\text{@ TheFox}`