quEstions 11 to 18 ArE BAsED on thE ConvErsAtion you hAvE just hEArD、 A．BECAusE ninE is An oDD numBEr.
B、BECAusE thE ElEvAtor got stuCk.
C．BECAusE thErE ArE too mAny pEoplE in thE ElEvAtor.
D．BECAusE thE ElEvAtor CoulDn’t go to thE Floors ABovE Eight Floor.