If one of the computers _______, the whole networks would be unable to work.
A．broken down B．broke up C．broke out D．broke in
Poor Richard spent his last penny on a bowl of noodles. Now he is______.
A．as strong as a horse B．as busy as a bee
C．as poor as a church mouse D．as cool as a cucumber
The little time I had outside of school was _______ with work.
A．taken on B．taken off C．taken up D．taken away
Many students ______independent learning skills because the education system spoon-feeds them.
A．are lack in B．lack C．lack in D．lack of
Mary is a newcomer. I suppose it will take her a long time to _______ herself to the new surroundings.
A．adopt B．devote C．adapt D．commit
Thank you for giving me so much help. I _______in the experiment without your support.
A．have failed B．will fail C．would have failed D．must have failed
