单项选择题
A．you must deposit them with the tour guide B．you must keep them in your hand baggage C．you must keep them in the van luggage D．you must leave them behind
A．an advertisement company B．an administration office C．a school newspaper D．a travel agency
A．wants business to hire more students B．believes in the benefits of good grades C．is concerned about students' creativity D．supports students' interests and abilities