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题型：单选题题类：真题难易度：普通

——Could you _______ the computer for me, dear? I want to check my e-mails.——Certainly, I'll do it right away.

A、turn on B、turn down C、turn off D、turn up

举一反三

—Could you tell me _______ it takes to go from here to Harbin by car?
—About fifty minutes.

The scientist don't exactly know when the universe but they are still studying it.

It's getting dark. Please the light.

I've ________ the salt. Can you buy some for me?

There are ______ grapes in the basket. You don't need to buy any.

Robot s can do simple jobs ____because they never get bored.

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