Passengers are permitted ________ only one piece of hand luggage onto the plane.
A．to carry
B．carrying
C．to be carried
D．being carried
Passengers are permitted ________ only one piece of hand luggage onto the plane.
A．to carry
B．carrying
C．to be carried
D．being carried
A
动词permit的含义是“允许”，其被动结构后接动词不定式，即be permitted to do sth.被允许做某事，由此排除B项和D项；由Passengers和carry之间存在主动关系，可排除表示被动的C项。句意：乘客只被允许携带一件手提行李登机。故选A项。