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题型：单选题题类：常考题难易度：困难

Mr. Wang made up his mind to devote all he could _____ his oral English before going abroad.

A、improve B、to improve　　 C、improving D、to improving

举一反三

—Mr. Johnson, I'm really sorry you waiting for so long a time.

—I know you are very busy at the moment.

It is worth {#blank#}1{#/blank#}(探索) other ways of dealing with this problem.

他正在做的事情与他的工作无关。

What he is doing has {#blank#}1{#/blank#} to do {#blank#}2{#/blank#} his work.

The letter wasn't addressed to me but I opened it out of {#blank#}1{#/blank#}(curious).

If you want to go camping, we can provide you {#blank#}1{#/blank#} a tent.

A total of 19 Golden Rooster Awards ______, The Wandering Earth took home the award the Best Picture.

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