阿摩線上測驗
40. _____ by the loud noise, the baby started to cry.
(A) Frightening
(B) To frighten
(C) Frighten
(D) Frightened
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統計： A(180), B(43), C(73), D(422), E(0) #3930938
統計： A(180), B(43), C(73), D(422), E(0) #3930938
