--Has James finished his report on his Enquiry Learning yet?--I’m not sure. She

题干

--Has James finished his report on his Enquiry Learning yet?
--I’m not sure. She _________ on it last week.

A．was working

B．has worked

C．worked

D．had worked

上一题下一题 0.64难度单项选择更新时间:2013-11-07 06:39:20

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