問題詳情

45.The Ministry of Defense has faced numerous difficulties getting volunteers _____ in the military.
(A) be enlisting
(B) who enlist
(C) that enlist
(D) to enlist

參考答案

答案:D
難度:適中0.602356
統計:A(42),B(169),C(59),D(409),E(0)

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