The roads have ______ because of people’s dependence on cars.
#102583
A
jammed
B
been jamming
C
to jam
D
been jammed
推荐题目
 I ___ on my report next week so I won’t be able to meet you any day.
#103394
A
am working
B
will be working
C
was working
D
have been working
I was sleeping when the telephone rang again.It was the third time that I ________ that night.
#99409
A
have been interrupted
B
had been interrupted
C
interrupted
D
had interrupted
The fire was finally brought under control, but extensive damage _________. 
#99352
A
is caused
B
was causing
C
had caused
D
had been caused