LAN DROPPED HIS WATCH WHEN HE WAS...THE BUS .A.TURNING OFF B. GETT...

112. - TRAC NGHIEM TONG HOP NGU PHAP CUC AN TUONG
TRAC NGHIEM TONG HOP NGU PHAP CUC AN TUONG

112.Lan dropped his watch when he was...the bus .

A.turning off

B. getting off

C.taking off

D.going off