问题
选择题
He didn’t ________ what I read because his mind was on something else.
A．hold on
B．catch on
C．take in
D．get over
答案
答案：C
take in(＝understand)理解；hold on(打电话时)不要挂断；catch on明白(作不及物动词用)；get over克服。根据语境应选C项。
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