14. The pilots will stay away from work next week _______ a new agreement with the airline company can be signed.
(A) whether
(B) except
(C) once
(D) unless
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統計: A(116), B(123), C(113), D(353), E(0) #1258251
統計: A(116), B(123), C(113), D(353), E(0) #1258251
詳解 (共 3 筆)
#1625582
unless
0
14