阿摩線上測驗
13. ____ becoming a father, Boris has not slept for more than six hours a day.
(A) Since
(B) Because
(C) Following
(D) As
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統計： A(9), B(0), C(0), D(0), E(0) #3342226
統計： A(9), B(0), C(0), D(0), E(0) #3342226
