The living room is clean and tidy, with a dining table already _____ for a meal to be cooked [ ]

I heard Max sing just now. What beautiful voice!— That’s true. He also has good sense of humour.

Where did you come across our Chinese teacher ? — It was in the supermarket ______I purchased mooncakes．

_______ it is to sing a Chinese folk song in a foreign language!

The cigarette end thrown away by a careless farmer _____ the big forest and brought us great loss.