---Mary looks down today. What is up? ---Well, ____ happened between Mary and me is none of your business.
Many of them turned a deaf ear to her advice, _______ they knew it to be valuable.
As a new driver, I have to practise _________ the car in my small garage again and again.
— May I use your dictionary? —_________. I’m not using it now.
Who did your English teacher the exercise books?
Look out! Don’t get too close to the house the roof is under repair.