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
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不被允許.....所以是被動+ed喔.....
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原本題目:二、文法測驗【請在下列各題中選...
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(考文法)(十秒解題) During ...
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