9. During take-off, the use of laptops and cellphones _______, so make sure they are all turned off.
(A)not allowing
(B)aren’t to allow
(C)is not allowed
(D)does not allow
答案:登入後查看
統計: A(83), B(219), C(883), D(65), E(0) #980483
統計: A(83), B(219), C(883), D(65), E(0) #980483
詳解 (共 4 筆)
#1299171
主詞是the use
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#1438112
在起飛時,使用筆記型電腦和手機是不允許的,所以一定要確保它們都關閉。
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