16.Their new system looks modern and advanced while ours,________,seems very old-fashioned.( )
A. | in turn | B. | in vain | C. | in poverty | D. | in contrast |
15.When things don't go the way we ________,we find ourselves trying to force them and struggling to finish them.( )
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A. | planned | B. | are planning | ||
C. | had planned | D. | will be planning |