25. The more clients we have to serve, _______ it is to keep them all satisfied.
(A) how challenging
(B) the more challenging
(C) more and more challenging
(D) the most challenging

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統計： A(13), B(147), C(10), D(11), E(0) #1781923

詳解 (共 2 筆)

#2901342
The more clients we ...
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#4150396
the more...,the more用法
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