练习册

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    A invent B invented C are invented D were invented ( ) 2 A: John has hurt his leg. B: Really? . A who did that B How did that happen C What’s wrong with him D Why was he so careless Lesson 42 It Only Takes a Moment! 夯实基础 【查看更多】

     

    题目列表(包括答案和解析)

    It is said that potato chips ____________ by mistake about a hundred years ago.

         A. invent       B. invented     C. are invented      D. were invented

     

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    I think mobile phone was ________ after the car.

    A. invent

    B. invented

    C. discover

    D. discovered

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    It is said that potato chips ________ by mistake about a hundred years ago.

    A. invent

    B. invented

    C. are invented

    D. were invented

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    They ________ a lot of toys in the past.

    A. invent

    B. invented

    C. invention

    D. inventor

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    It is said that potato chips　　　　 by mistake about a hundred years ago.

    A. invent　 B. invented C. are invented D. were invented

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