问题
选择题
He has recently _____ chess to provide himself with some relaxation.
A．taken on
B．taken up
C．held on
D．held up
答案
答案：B
take up开始从事。take on参阅Ⅲ，162,171注释。hold on, hold up参阅Ⅲ，162,171注释。
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