-David has made great progress recently. -______, and ______.
He is businesslike and is often _____. I hope he will have more _____ at his business.
---It’s generous ________ Millie to donate all her pocket money to UNICEF.---Yes. It is really meaningful _________ us to do something for charities.
---It’s nice day, isn’t it?---Yes, what fine weather!
The windows of classroom _____ up every week.
I really don’t know _______