My brother has been in the ________ (军队) for half a year.
Riding a bike will save energy and _______ (减少) air pollution.
---What are you doing?
---I'm ___________ (考虑) changing my job.
---Are you free, Maria? I'd like to talk with you. It won't __________(占据) too much time.
---No problem.
I have __________ (为……付款) the shirt. Let's go home.