`->` Shall we collect unused clothes for the victims of the natural disaster?

`-` Cấu trúc: Why don't we + Vinf?

`=` Shall we + Vinf?

`=>` Đưa ra lời đề nghị.

`->` Why don't we use electricity economically?

`-` Cấu trúc: Let's + Vinf.

`=` Why don't we + Vinf?

`=>` Đưa ra lời đề nghị.

Why don't we collect unused clothes for the victims of the natural disater?
`->` Shall we unused clothes for the victims of the natural disaster?
Let's use electricity economically
`->` why don't we use electricity economically?
`-` Cấu trúc:
`@` Why don't+S+V(bare inf)+O?
`@` Shall we+V(bare inf)+O?
`\text{Học tốt}`
$#vpgh1810$
`\text{#Tắt chế độ xa lánh bật chế độ xanh lá}`