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题型：单选题题类：模拟题难易度：普通

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

He spent a lot of time on English. _______, he got the most points in the English test.

Don't be afraid of new words. You can in the dictionary.

The Anti-Japanese War ______ in 1937．

If you want to lose weight, you'd better not eat too much meat.

Don't ______________ trees. They are important to animals.

你的梦想总有一天会实现。

Your dream will {#blank#}1{#/blank#} {#blank#}2{#/blank#} someday.

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