`1`.I like comedy programmes

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

`2`.The 2012 Olympic Games were held in London

`\rightarrow` Câu bị động `-` Thì QKĐ : S + was / were + V3 / PII ( by O )

`3`.If you use less paper , you will save a lot of trees

`\rightarrow` CĐK loại 1 :

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

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

`4`.Can you sing an English song ?

`\rightarrow` ĐT đi sau Can vẫn giữ nguyên

`5`.They have just finished their homework

`\rightarrow` Thì HTHT : S + have / has + V3 / PII

`\rightarrow` Đặc điểm nhận dạng : just

`\text{@ TheFox}`