27．-Hi.Jane. ?You look tired． -I’m working hard to improve my English． A．What are you doing B．What are you up to C．What do you think D．What have you done 【查看更多】

 

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-Hi，Jane，___________?You look tired．

-I’m working hard to improve my English．

A．What are you doing               B．What are you up to

C．What do you think                D．What have you done

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