I...ALONG THE STREET WHEN I SUDDENLY HEARD FOOTSTEPSBEHIND ME. A....

47. - TONG HOP BAI TAP TRAC NGHIEM VE CAC THI TRONG TIENG ANH
TONG HOP BAI TAP TRAC NGHIEM VE CAC THI TRONG TIENG ANH

47.

I...along the street when I suddenly heard footsteps

behind me. A. was walking

B. am walking

C. walk

D. walked