The eggs in this box are heavier than _______ in that box.
A. those B. they C. these D. Their
—I called you this morning, but nobody answered.
—I _______ the flowers in my garden at that time.
A.watered B.was watering C.water D.am watering
Helen caught a cold the day before yesterday. But she’s ______ today.
A. much better B. more better C. gooder D. Good
—How many students are there in your school? —About_______ students, I think.
A. two thousand B.two thousands
C.two thousand of D.two thousands of
Tom is ______ of the six boys.
A.strong B.stronger C.the strongest D.more strong
——Must I take the medicine every day?—No, you _______.
A.mustn’t B.don’t
C. don’t have to D. can’t