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
Our head teacher keeps telling us that the future ________ to the well-educated.
#66392
A
belongs
B
is belonging
C
will be belonged
D
is belonged
Tom tried to __________ in German.
#73077
A
understand himself
B
make himself understanding
C
make himself understood
D
make himself understand
--- I’m still working on my project.--- Oh, you will miss the deadline. Time is .
#69057
A
running out
B
going out
C
giving out
D
dropping out
---Jack can't concentrate on his study recently． --- Yes, that might ____ why he did so badly in the last test．
#66519
A
answer for
B
apply for
C
call for
D
account for
Can you ______ what I say? Do you need more explanation?
#74349
A
make sense of
B
put an end to
C
attend to
D
leave alone