38. Please refrain______while onboard this aircraft. It is now prohibited.(A)from smoking(B) to smok

問題詳情

38. Please refrain______while onboard this aircraft. It is now prohibited.
(A)from smoking
(B) to smoke
(C) smoking
(D) smoked

參考答案

答案：A
難度：適中0.408072
統計：A(91),B(42),C(64),D(3),E(0)

用户評論

【下車寶貝】評論

refrain from doing sth

【許履新】評論

refain克制

【dr.wen0512】評論

aircraft n.飛機 prohibit V.禁止

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