At night, plants _________carbon dioxide and at the same time _________oxygen. So, we may put some in our bedrooms to purify the air.
#64170
A
take in, give out
B
take up, give off
C
take in, give in
D
take off, give up
推荐题目
Mary ________ passing the entrance examination.
#78475
A
succeeded
B
succeeded in
C
succeeds in
D
succeeds
Millionaires are often very generous and __a lot of their money to charities to help the poor.
#75028
A
give in
B
give up
C
give away
D
give off
He is no longer in good condition, and his ability to work is limited. I ____________ him to give up the job but failed.
#65138
A
suggested
B
persuaded
C
tried to persuade
D
managed
Yesterday morning in a city in the USA, a crowd of dustmen went on a strike to ______ complaints about their low pay．
#74414
A
sound
B
voice
C
noise
D
talk
I found the homework was not so heavy as ______ I ______ to get in my old school.
#67473
A
that; was used
B
what; used
C
which; used
D
that; used