IF THEY ………… THE MUSIC LOUDLY THEN, I COULD HEAR HIM CLEARLY.A. HA...

29/ - BAI TAP TRAC NGHIEM ON THI TOT NGHIEP
BAI TAP TRAC NGHIEM ON THI TOT NGHIEP

29/ If they ………… the music loudly then, I could hear him clearly.

A. hadn’t played

B. didn’t play

C. had played

D. wouldn’t play