I ___________ in the street when I met an old friend of mine  yesterday.
#101416
A
walked
B
was walking
C
has walked
D
had walked
推荐题目
______ of danger in the street at night, she had to go home, with a friend _____ her.
#101448
A
Warned ; accompanied
B
Warning; accompanying
C
Having warned; accompanied
D
Having been warned; accompanying
The fire was finally brought under control, but extensive damage _________. 
#99352
A
is caused
B
was causing
C
had caused
D
had been caused