The water will be polluted unless some measures _____.
#103340
A
will be taken
B
are being taken
C
are taken
D
were taken
推荐题目
Would you please keep silent? The weather report            and I want to listen. 
#101657
A
is broadcast
B
has been broadcast
C
is being broadcast
D
was broadcast
She ____ the house the whole morning but it seems to be at least an hour before she finishes it.
#102096
A
has been cleaning
B
cleaned
C
had cleaned
D
has cleaned
I would have come earlier, but I ________ that you were waiting for me. 
#102416
A
hadn’t known
B
didn’t know
C
would have known
D
haven’t know
  I have no idea what _____ while I was asleep.
#100185
A
has happened
B
could happen
C
had happened
D
happened