Bicycling is a good exercise;________ it does not pollute the air.
When I am a bad mood, I like wearing orange to .
— Could you tell me ______? I must find him.— Sorry. I have no idea. But he was here just now.
__________ you offered him!
My father always has fun _______with the neighbours on weekends.
The woman is always kind to others. She tries to help anyone_________.