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题型：单选题题类：常考题难易度：普通

The light bulb ______ by Edison in the middle of the 1780s.

A、is invented B、was invented C、invented D、invent

举一反三

Last year, another two beautiful bridges ___________ over the Jialing River.

—Did you go to Jack's birthday party?
—No, I _______.

—Lily was made __________ the test paper because of the mistakes she made .
—Really? I ________ anything about that .

- Did you go to Li Lei's birthday party? - No, I ___________.

Mr. Green _____ to sing an English song at the party and he sang well.

When I got into the bath, more water{#blank#}1{#/blank#}(displace).

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