I ________ to him because he phoned me shortly afterwards.
(A) ought to have written
(B) must have written
(C) couldn’t have written
(D) needn’t have written
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統計: A(196), B(245), C(162), D(313), E(0) #330498
統計: A(196), B(245), C(162), D(313), E(0) #330498