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 manyinns可数
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 amountamount修饰不可数n,drive-inns是可数名词
help help help!!!!
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