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
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．Well, if watching TV or seeing a film doesn’t______ to you, how about going hiking, instead?
#75484
A
appeal
B
belong
C
refer
D
occur
He slowed the bleeding by pressure to the wounds until the ambulance arrived.
#68890
A
assessing
B
approving
C
applying
D
appointing