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    29．--Has Sam finished his homework today? --Yes．He it this morning． A．did B．has done C．was doing D．had done 【查看更多】

     

    题目列表(包括答案和解析)

    ― Has Sam finished his homework today?

     ―I have no idea. He  ______  it this morning.

          A. did                        B. has done              C. was doing             D. had done

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    —Has Sam finished his homework??

    —I have no idea. He _____ it this morning.?

    A.did?

    B.has done?

    C.was doing?

    D.had done?

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    — Has Sam finished his homework today?　　

    — I have no idea. He ________ it this morning.　　

    A．did

    B．was doing

    C．has done

    D．had done

     

    查看答案和解析>>

    — Has Sam finished his homework today ?

    — I have no idea. He ______ it this morning.

    A. did       B. has done        C. was doing      D. had done

    查看答案和解析>>

    —Has Sam finished his homework today?

    —I have no idea. He ________ it this morning.

    A. did            B. has done                                 C. was doing       D. had done

     

    查看答案和解析>>


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