問題詳情

23. _______ there is another planet for creatures to live on _______ a question.
(A) If… remaining
(B) Whether… remaining
(C) If… remains
(D) Whether… remains

參考答案

答案:D
難度:困難0.314961
統計:A(29),B(43),C(15),D(40),E(0)

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