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题型：单选题题类：真题难易度：普通

The factory ______ its waste into the river, but now it deals with the waste in a new way.

A、used to dump B、is used to dump C、used to dumping D、is used to dumping

举一反三

—Have you finished the work?

—Not yet, but we'll keep ________ until we make it.

The photo {#blank#}1{#/blank#} her English teacher is very old.（填介词）

The movie is ________ wonderful ________ I want to see it again.

We have worked for three hours. Now let's stop ______________ a rest.

—Where are you going for vacation, John?

—I plan_______ to Dalian.

In order to protect the water resources, we need to t{#blank#}1{#/blank#} action.

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