– Look at these factories. I hate them. They____ many rivers here. --Yes. Something ______ to stop the pollution.
#39701
A
polluted, must do
B
had polluted , must be doing
C
have polluted , must be done
D
were polluting, must be done
推荐题目
It’s almost eight years we _______ each other last time.
#37554
A
since; saw
B
before; see
C
after; will see
D
when; have seen
—Why are you in such a hurry, Ted?—Don’t you know? There__________ a football match soon.
#36178
A
will be.
B
will have.
C
is going to have.
D
are going to be.
She until his mother got back home.That’s why she was so tired.
#40176
A
didn’t sleep
B
doesn’t sleep
C
slept
D
sleeped
Some social workers _____ after the people in need while others ____ out food to the local people.
#39984
A
looked, gave
B
were looking, gave
C
were looking, were giving
D
looked, were giving