We should do something about it => Something What about using energy saving appliances ? => We should I advise you to put your money in the blank => You'd

`1`. Something about it should be done.

Câu bị động: S`+`should`+`be`+`Ved`/`V3.

`2`. We should use energy-saving appliances.

What about`+`V.ing`?`

S`+`should`+`V.

`3`. You'd better put your money in the blank.

S`+`advised`+`sb`+`to do sth.

S'd`/`had`+`better`+`V.