精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

32. According to the regulation, all _____ should be examined before boarding a plane.

A. suitcase                   B. baggages                C. a luggage                 D. the baggage

32. According to the regulation, all _____ should be examined before boarding a plane.

According to the regulation, all _____ should be examined before boarding a plane.

　 A. suitcase　 B. baggages　　 C. a luggage　 D. the baggage