Questions 16to 19are based on following passage.  This brand new aircraft is designed with four classes of service:First Class, Business Class,Premium Economy Class and Economy Class,meeting passengers’various needs.   16.How many seats are there on board this new plane? A.66 B.120 C.233 D.365 Where can you probably find your seat if your ticket is the Premium Economy Class? A.Rows 11-15 B.Rows 31-37 C.Rows 38-64 D.Rows 80-87  How many classes of passengers can use the central bar? A.1 B.2 C.3 D.4 Which class is provided with a locker? A.First Class  B.Business Class C.Premium Economy Class D.Economy Class 