57.（单选题）MARRIOTT INTERNATIONAL is a __________ lodging company with more than 3,200 hotels in the United States.

71.（填空题）He gave us a very ______（detail）description of the picture.

70.（填空题）The country has a very serious _______ （finance）problem.

69.（填空题）Fresh air and good food are ______ （benefit）to our health.

68.（填空题）We are doing this for your ______ （safe）.

67.（填空题）For ______ （secure）reason, passengers are requested not to leave any luggage unattended.

66.（填空题）Manufacturers are making safety a __________（ prioritize）.

65.（填空题）Teenagers are often very ____________ （sense）about their appearance.

64.（填空题）The population of the town saw rapid ____________ （expand）in the 1960s.

63.（填空题）These devices allow the robot to have dynamic ____________ （interact）with its environment.

62.（填空题）The tall building（complete）_________last month is our new classroom building.