阿摩線上測驗
17. It’s amazing that Michael _____ swim across the large pool by himself back in his early childhood.
(A) can
(B) must
(C) could
(D) ought to
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統計： A(49), B(5), C(110), D(5), E(0) #3426226
統計： A(49), B(5), C(110), D(5), E(0) #3426226
