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  • 1. 补全对话。

    A: Look, Mona! ?

    B: Oh, it's a computer. It is widely used in today's world.

    A: You are right. Do you know ?

    B: Yes, it was invented in 1946.

    A: ?

    B: It is used for helping us work, study, send e-mails and so on.

    A: ?

    B: It is said that it was invented by some American scientists.

    A: By the way, what are you going to be when you grow up?

    B:  and invent many useful inventions for our motherland.

    A: OK. Let's work hard to make our dreams come true.

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