The winner of the singing competition was a ____ girl called Zhang Mei from China. A. 19-years-old B.19-year-old C. 19-year-olds.
—Remember ____ off the lights when you leave the room. —OK. I will.
—Which kind of food smells ____ or tastes____? —Sorry, I don’t know.
—Do you think the students need to have lunch at school? —____. It’s good for them to save time.
—Will you please ____ so much noise, Dongdong? —Sorry. I won’t.
I don’t know ____ or not he is right.