6. I stayed up late playing with my cellphone, ____ is why I overslept this morning.
(A) it
(B) that
(C) which
(D) what

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統計： A(53), B(84), C(277), D(15), E(0) #3154850

詳解 (共 1 筆)

#6611289
6. I stayed up late ...
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