阿摩線上測驗
17. My pain _______ apparent the moment I walked into the room, for the first man I met asked sympathetically: "Are you feeling all right?"
(A) must be
(B) had been
(C) must have been
(D) had to be
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統計： A(0), B(1), C(0), D(0), E(0) #3355094
統計： A(0), B(1), C(0), D(0), E(0) #3355094
