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题型：单选题题类：常考题难易度：容易

Scientists from different countries are trying to_______ a good way to solve the energy problem.

A、keep up with B、come up with C、catch up with D、meet up with

举一反三

David_______ all night in order to watch the football match between France and Italy.

—When will Han Han's new book ________?
—Sorry, I don't know. I'm looking forward to his new book, too.

It is hot outside. You can________ your coat.

Dad from his paper and smiled when I entered the living room.

If he keeps on working so hard, he'll ______ under the pressure of work.

Anna is preparing for the coming exam, so she has to _______________ the invitation to the party.

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