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
The parents feel hopeless when their son has_____ internet games for so long.
#83901
A
accustomed to
B
addicted to
C
been accustomed to
D
been addicted to
Fur coats are good means to ______ people from frost bites in cold winter.
#64456
A
stop
B
prevent
C
protect
D
keep
It remains to be seen what effects the new educational reform will _________ students.
#71334
A
make on
B
take on
C
have on
D
get on
—Did you make sense of what the man said just now?—No, his meaning didn’t . Would you explain it to me?
#72746
A
get through
B
get off
C
get across
D
get out
Buses have routes. They ________ and ________ people at different places on the routes.
#73368
A
take on, get off
B
pick up, drop off
C
take up; take off
D
pick out; drop out