31.
(A) filled
(B) waited
(C) reserved
(D) covered
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統計: A(3), B(3), C(30), D(6), E(0) #3895754
統計: A(3), B(3), C(30), D(6), E(0) #3895754
31.
(A) filled
(B) waited
(C) reserved
(D) covered