The guard ______ to his iPod, so he ______ the fire alarm.
A.had listened – was not hearing
B.was listening – did not hear
C.listened – had not heard
D.was listening – was not hearing
A.had listened – was not hearing
B.was listening – did not hear
C.listened – had not heard
D.was listening – was not hearing
Loga
Hóa Học lớp 12
