What does the phrase "catch up"in Paragraph 5 mean？A．To come from behind and reach someone
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What does the phrase "catch up"in Paragraph 5 mean？
A．To come from behind and reach someone in front of you by going faster.
B．To get involved in something.
C．To do what needs to be done because you have not been able to do it until now.
D．To try to take hold of something.
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