`1`.All the garbage around the school yard were collected by the children last weekend

`->` BĐ `-` QKĐ : S + was / were + VpII ( by O )

`=>` You , We , They `+` were

`3`.If you complete all your homework , you will get better results

`->` 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

`4`.They haven't seen films for `2` years

`->` Thì HTHT ( PĐ ) : S + haven't / hasn't + VpII

`=>` I , You , We , They `+` haven't

`->` For + Time : Bao lâu

`5`.He runs more quickly than me

`->` SSH ( Trạng từ ) :

`=>` S1 + V + adv-er / more adv + than + S2

`->` Khi Trạng từ có `2` âm tiết trở lên , ta thêm " more " trước nó

`6`.Because she didn't prepare carefully for the coming test , she did it badly

`->` Because + C1 + C2 : Bởi vì

`=>` Dùng để chỉ về nguyên nhân , lý do

`->` Thì QKĐ ( PĐ ) : S + didn't + V

`\text{# TF}`

`1.` All the garbage around the school yard was collected last weekend by the children.

`-` CBĐ QKĐ : S + was/were + P2 by O

`2.` If you complete all your homework, you will get better results.

`-` Câu điều kiện loại `1 :` If S + V hiện tại , S + will/can/may + V-inf

`3.` They haven't seen films for 2 years.

`-` The last time + S + V ed+ was + time + ago.

`=>` S + have/ has +not+ for + time : lần cuối cùng làm gì 

`4.` He runs faster than me.

`-` S + tobe (a/an) + so sánh hơn than + S2 

`=>` S1 + V1 + so sánh hơn than + S2

`5.` Because she did not prepare carefully for the coming test , she did it bad.

`-` Because / Since + MĐ nguyên nhân : bởi vì

`=>` Owing to/ because of+ Noun/gerund (Ving)