题目:
When drive-ins were at the height of their popularity in the late 1950's, some 4,000 existed in the United States, but today there are less than one-quarter that many.
选项:
A、there are less than one-quarter that many
B、there are fewer than one-quarter as many
C、there are fewer than one-quarter of that amount
D、the number is less than one-quarter the amount
E、it is less than one-quarter of that amount
答案:
B