—What happened to Bill?—He ________ really fast when suddenly he ran into a parked car.
#63702
A
had run
B
was running
C
has run
D
has been running
推荐题目
I ________ when the UFO landed.
#42296
A
am watching TV
B
was watching TV
C
have watched TV
D
watched TV
—What were you doing at this time yesterday?—We _______ in the classroom. 
#39914
A
read
B
were reading
C
are reading
D
was reading