27. A quarter of the students in this class _____ passed the GEPT Intermediate Level.
(A) has been
(B) have
(C) has
(D) have been
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統計: A(1), B(30), C(9), D(6), E(0) #864385
統計: A(1), B(30), C(9), D(6), E(0) #864385