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21No one knows______what the pupils will be learning at the same age as ours in 1000 years.
A．be sure B．to be surely
C．make sure D．for sure
22We will ______ all the natural resources if we continue consuming them like that.
A．run out B．wipe out
C．drop out D．hold out
23You may______ the teacher when you have difficult questions.
A．insist on B．rely on
C．go on D．keep on
24Once formed，the bad habit will not be easy_______.
A．got rid B．getting rid of
C．to get rid of D．get rid of
25Give him another chance.______，he is too young.
A．For a start B．In the end
C．At the middle D．Freely
26At the help of the teachers，most students regard collecting mistaken exercises as a form of______，while others consider it to be a headache.21·世纪*教育网
A．foundation B．revolution
C．recreation D．action
27______ team wins in the sports meeting will go through to the county championships.
A．No matter what B．No matter which
C．Whatever D．Whichever
28(2010福建龙岩市质检)—The movie 2012 will be on at 8 pm.What about picking you up at 7?
—All right，I will have come back from work by then，and I ______you at home.
A．will wait for B．will be waiting for
C．h
