27. Not until Steve lost his health ________ the importance of it.
(A)he didn’t realize
(B) did he realize
(C)he realized
(D) so he realized
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統計: A(17), B(143), C(23), D(11), E(0) #1571065
統計: A(17), B(143), C(23), D(11), E(0) #1571065