I ______ doing some sports with others ______ chatting online in the room.
---I know this is the latest type but it’s second hand. $40 ----that’s my last offer. --- OK. It’s a(an) _________.
Professor Li, who I _________ abroad, still teaches in Peking University.
--Was it two months ago_____you luckily got an opportunity to spend your holiday in Hawaii?--____________. John was the lucky dog.
We can’t wait. We have to_________ the direction and the distance before we take action.
Don’t you know that the famous university is as a matter of fact _________used to be a church?