Passeagers are permitted only one piece of hand luggage onto the plane.
A. to carry
B. carrying
C. to be carried
D. being carried
网友回答
(答案→)A. to carry
B. carrying
C. to be carried
D. being carried
解析：Passeagers是carry的逻辑主语，不用被动语态。be permitted to do sth某人被允许做某事，不定式表示一次性动作，动名词表示反复发生的动作，故选A。