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
After a second thought, Bill ________ a better idea of how to solve the problem.
#65658
A
put up with
B
kept up with
C
came up with
D
mixed up with
Fully __________ in looking after three children at home, she no longer has time to enjoy the various activities in the club.
#71088
A
occupied
B
contributed
C
attached
D
devoted
— How long have you been here?— Only about five minutes. Henry and Simon ______ here with me.
#71941
A
walk
B
have walked
C
walked
D
had walked
His sister left home in 1998, and _______since.
#84460
A
had not been heard of
B
has not been heard of
C
had not heard of
D
has not heard of
— Would you like to go to London with us next week? — I’d like to, but my parents ______ that I am too young.
#81511
A
are against
B
oppose
C
object
D
explain