Đáp án `+` Giải thích các bước giải:

in every class/ putting recycling bins/ talk to/ at school about/ teachers/ students 

`=>` Teachers talk to students at school about putting recyclings bins in every class.

smart TV/ house/ I/ my/ super/ have/ will/ a/ in

`=>` I will have a super smart TV in my house

throwing them away/ instead of/ last year/ clothes/ to charity/ give

`=>` Instead of throwing them away, give last year clothes to charity. 

your teeth/ the dishes/ turn the tap off/ or wash/ when you brush 

`=>` Turn the tap off when you brush your teeth or wash the dishes.

more/ there will be/ if/ cycle/ less air pollution/ people

`=>` If more people cycle, there will be less air pollution.

`___________________________________________`

Remember:

Quá khứ đơn: (tobe)

`+`) S + was/were + O

`-`) S + was/were + not + O

?) Was/were + S + O?

Tương lai đơn: (tobe)

`+`) S + will + be + N/Adj

`-`) S + won't + be + N/Adj 

?) Will + S + be + N/Adj? 

Hiện tại tiếp diễn: (tobe)

`+`) S + is/ am/ are + V-ing