quEstions 19 to 22 ArE BAsED on thE ConvErsAtion you hAvE just hEArD、 A．BECAusE his wiFE hAs BEEn BEhAving strAngEly.
B、BECAusE his FAthEr hAs suDDEnly hAD A hEArt AttACk
C．BECAusE his mothEr is still so unhAppy ABout his FAthEr’s DEAth.
D．BECAusE his DAughtEr is All AlonE in A Big housE By thE sEA、.