chuyển sang passive voice 1.The local residents are going to plant more trees during this campaign. 2.More and more people dont use plastic bags when shopping. 3.When did they discuss important environmental issues at the meeting ?

`1.` More trees are going to be planted by the local residents during this campaign.

`-` TLG: `(+)` S + is/am/are + going to V

`->` Bị động: S + is/am/are + going to be + PII (By O)

`2.` Plastic bags are not used by more and more people when shopping.

`-` HTĐ: `(+)` S + V(s/es)

`->` Bị động: `(-)` S + is/am/are not + PII + (By O)

`3.` When were important environmental issues discussed at the meeting?

`-` QKĐ: `(?)` (Wh_question) + did + S + V? 

`->` Bị động: `(?)` (Wh_question) + was/were + S + PII + (By O)? 

`1`. More trees are going to be planted by the local residents during this campaign.

`->` Bị động TLG: S + am/is/are + going to + V-pII + (by O)...

`2`. Plastic bags aren't used by more and more people when shopping.

`->` Bị động HTĐ: S + am/is/are + V-pII + (by O)...

`3`. When were important environmental issues discussed at the meeting?

`->` Bị động QKĐ: S + was/were + V-pII + (by O)...