______ young man standing there looks strong and healthy; however, as _________ matter of fact ,he has a serious disease.
It's quite warm here; we ________ turn the heating on yet.
Sarah made ______ to the airport just in time to catch her plane this morning.
—Would you mind if I sit here? — _________. It is for Mr. Brown.
Now more and more workers ______their free time trying to improve themselves at school or college.
I’m afraid physics is completely ________me and I have to ask you for help.