40. Some Vietnam veterans were disappointed with American public’s negative perception of the war, they suffered severe mental problems when they returned to civilian life.
(A)Some
(B)with
(C)perception
(D)war
(E)when
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統計: A(1), B(20), C(0), D(2), E(8) #1021201
統計: A(1), B(20), C(0), D(2), E(8) #1021201