– 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
Mr. White came to our school in 2008, and since then he ______ us English.
#42358
A
teaches
B
taught
C
has taught
D
will teach
——How long has his father ________London?——For two weeks.
#40461
A
been to
B
gone to
C
been in
D
arrived in
---Pardon? I _____ quite catch you.--- I said I ______ the song before.
#39608
A
didn’t, hadn’t heard
B
don’t, didn’t hear
C
didn’t, didn’t hear
D
won’t, hadn’t heard
—I hear you _________ the latest laptop for a week.—No, my father ______ it for me as a birthday present a month ago.
#36162
A
have bought, bought
B
have bought, have had
C
have had, have bought
D
have had, bought
It’s said that scientists have ________ a way to deal with the serious disease
#41866
A
caught up with
B
come up with
C
agreed with
D
compared with