(    )16. The number of the students _____ 300. A small number of stu dents _______ the car to school.
        A. are; takes     B. has; takes     C. is; take      D. has; take
(    )17. It’s difficult for Nick _____ shoes. One of his feet is bigger than ___.
        A. buying; others           B. to buy; another. 
C. to buy; the other         D. buys; other
(    )18. Can you tell me __________________?
A. how can we get to the library        B. how the weather tomorrow 
C. how far it is                      D. how do you get to school