阿摩線上測驗
15. The Copperhead is a venomous serpent, and _____ bite has been proved
dangerous to hikers and joggers.
(A) whose
(B) who
(C) whom
(D) its
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統計： A(11), B(1), C(3), D(27), E(0) #1590154
統計： A(11), B(1), C(3), D(27), E(0) #1590154
