It is necessary for children to exchange ideas with parents from time to time so that the generation gap between parents and children can be _________.
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A
released
B
replaced
C
narrowed
D
disappeared
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At a rough estimate ( 估计), this country is ___________ Great Britain.
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A
three times as the size of
B
three times large than
C
three times as larger as
D
three times the size of
 Thanks to their hard work, the new bridge has been finished ________.
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A
in front of schedule
B
ahead of schedule
C
behind schedule
D
beside schedule