I have trouble understanding English humour. More often than not, I can’t figure

题干

I have trouble understanding English humour. More often than not, I can’t figure out that makes them laugh.

A．what it is	B．why it is
C．what is it	D．why that makes

上一题下一题 0.64难度单项选择更新时间:2014-09-19 04:11:16

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