Mr Wang has worked as _______ English teacher for more than 10 years.
— Shedidn’tcometoschoolyesterday,didshe? — ___________,thoughshewasnotfeelingwell.
—Did you have any problems in London ? —Yes, I have trouble ______ Chinese food like noodles.
—What is a writing brush, do you know? —It’s used ______ writing and drawing.
He used to ____in the sun, but now he is used to ____at night.
My father isn’t in good health now. I think he should pay attention____ exercise.