_________ the right behavior to counter your problem .
A. Build in
Build up
C. Build upon
D. build on
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I can________ things with a clear conscience. I did everything I could.
A. look back on
B. look at
C. look up
D. look up to
What does EU _________?
A. stand for
B. stand up
C. stand on
D. stand in
Can you leave the door ________ so I can get in?
A. on the latch
B. on the way
C. on the wall
D. on the whole
Building ITS is the available method increasing present systems _________
A. by a large margin
B. by all means
C. by and by
D. by any chance
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