It is the first time that Martin has been to the South Pole, ________?A．isn’t he_刷题宝

题干

It is the first time that Martin has been to the South Pole, ________?

A．isn’t he

B．hasn’t he

C．isn’t it

D．hasn’t it

上一题下一题 0.85难度单项选择更新时间:2011-06-17 08:38:36

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