Bears ________ fat stores throughout the summer and fall to have energy enough to last them through winter sleep.
A.build up B.pack up C.bring up D.take up
The present situation is very complex, so I think it will take me some time to ____________ its reality.
A.make up B.figure out
C.look through D.put off
The teacher stressed again that the students should not _____ any important details while retelling the story.
A.bring out B.leave out C.let out D.make out
As nobody here knows what is wrong with the machine, we must send for an engineer to _________ the problem.
A.handle B.raise
C.face D.present
Though having lived abroad for years, many Chinese still the traditional customs.
A.perform B.possess
C.observe D.support
I _____ it as a basic principle of the company that suppliers of raw materials should be given a fair price for their products.
A.make B.look C.take D.think
