As we know, ______is good exercise and it is necessary for health.
A. walk B. to walk C. walking D. walked
Don’t eat ___________, or you will be fatter.
A. too many B. too much C. much too
—I’m sorry to keep you waiting for me so long.
—_______
A.I don’t think so. B.Don’t say so.
C.It doesn’t matter. D.I’d love to.
James is ________ boy.
A.a 18-month-old B. a 18 months old
C. an 18-month-old D.an 18-months-old
Bill has ______ flu and he had better take some medicine.
A. a B. the C. / D.an
I will ask my father to give up ________.
A. smoke B. smoking C. smokes D. to smoke
