`36`.Plant trees and flowers keeps our school beautiful

`\rightarrow` Thì HTĐ : S + Vs / es / không s , es

`37`.If you listen to the teacher carefully , you will understand the lesson well

`\rightarrow` CĐK Loại 1 ( `37 , 40` ) :

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

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

`38`.Reading books is interesting

`\rightarrow` Thì HTĐ ( ĐT Tobe ) : S + be + adj / n

`39`.Tom is interested in playing badminton

`\rightarrow` S + be ( not ) interested in + V-ing / N : Hứng thú làm gì

`40`.If you do exercise , you will have a healthy life

`\text{@ TheFox}`