Ⅰ.单项填空
1． Young drivers under 25 have the highest number of accidents while those over 50 have________.
A．the less B．the fewest
C．the least D．the fewer
2．—Many people are in great need of extra food.
—Yes.It is a challenge to________all their needs.
A．satisfy B．gain
C．practise D．produce
3．It is no longer________it was 20 years ago，________it was so poorly equipped.
A．what；when B．that；which
C．what；which D．which；that
4．—What do you think of the book I lent you yesterday?
—Oh，not too bad.It’s not too difficult________.
A．to read B．to be read
C．reading D．being read
