Plants _________carbon dioxide and at the same time _________oxygen. So we may put some in our bedrooms to purify the air.
#65276
A
take in, give out
B
take up, give off
C
take over, give in
D
take off, give up
推荐题目
I used to quarrel a lot with my parents, but now we ______ fine.
#81324
A
look out
B
stay up
C
carry on
D
get along
All the teachers and students _________ National Day with a party.
#68995
A
celebrated on
B
celebrated
C
congratulated on
D
congratulated
Exercising regularly can not only ____one’s strength, but also develop one’s character.
#66085
A
put up
B
take up
C
build up
D
pull up
The medicine ___ as soon as you take it. But it ____ the blood.
#77097
A
brings into effect; effects
B
takes effect; has a bad effect on
C
comes into effect; has little effect on
D
is carried into effect; has much effect on
If your knowledge can be _________ with my experience, we are sure to succeed.
#65525
A
joined
B
united
C
connected
D
combined