23. Vivian must be much happier than______ when she hears the good news.
(A) us most
(B) do most of us
(C) most of us is
(D) are most of us
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統計: A(19), B(18), C(61), D(11), E(0) #2634304
統計: A(19), B(18), C(61), D(11), E(0) #2634304