-The window is dirty. -I know. It ___________ for weeks.
#99391
A
hasn’t cleaned
B
didn’t clean
C
wasn’t cleaned
D
hasn’t been cleaned
推荐题目
After school we went to the reading-room to do some reading, only to be told that it ____________.
#101081
A
was decorated
B
had decorated
C
had been decorating
D
was being decorated
The London 2012 Olympic Games marks the third time that London ________ the right to host the modern Olympics.
#99727
A
had had
B
has
C
had
D
has had
Hurry up! The train _____________. You know it _______ at 8:30.
#100284
A
leaves; leaves
B
is leaving; leaves
C
leaves; is leaving
D
is leaving; is leaving