向别人介绍一位新朋友时,你会说:________
You shouldn’t take photos in the museum, it’s ____ the rules.
---- What was wrong with you yesterday evening? ---- I ____ my homework when the light went off suddenly.
---- Your coffee smells good! ---- It’s from Canada. Would you like ____ ?
--- Could you tell us ______? ---- About two weeks.
The workers can ____ the waste things ____ something useful.