阿摩線上測驗
40. Something ________ to George to make him behave in such a strange way.
(A)should happen
(B)must have happened
(C)may be happened
(D)was happened
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統計： A(167), B(901), C(152), D(231), E(0) #1899858
統計： A(167), B(901), C(152), D(231), E(0) #1899858
