GWD6-41

GWD-8-Q41:

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.

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

GWD-TN6:请问各位amount不是只能修饰不可数名词的么，则么这里优秀是可数的数字了呢

这题应该是B吧