______ exercise, and you will be healthier.
A.To keep B.Keep C.Keeping D.Kept
We won’t visit Yancheng Nature Reserve if it ______ tomorrow.
A.is rainy B.will rain C.won’t rain D.isn’t rain
—What were you doing ______ your mother came back?
—I was doing my homework, of course.
A.during B.after C.while D.when
Jim has______ friends in his class. He is new here.
A.the most B.the best C.the least D.the fewest
Don’t stop _______ your dictionary every time you meet a new word while reading.
A.using B.use C.used D.to use
Mrs. Wang brought her three-year-old daughter to the cinema, but the little girl couldn’t sit ______ the whole film.
A.during B.through C.with D.over