31 We have been waiting for Jack for almost two hours. I wonder __________.
(A) where he was
(B) where was he
(C) where he has been
(D) where he is

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統計： A(225), B(128), C(226), D(948), E(0) #248667

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#1672918
where he is 他在哪
(共 17 字，隱藏中）
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