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题型：单选题题类：模拟题难易度：容易

_____ Browns are going shopping this Saturday. They are going to buy _____useful umbrella.

A、/; a B、The; a C、/; the D、The; an

举一反三

That's interesting tennis game. I like it.

She usually has ________ egg and some porridge for ________ breakfast.

This is ________ song I've told you about．Isn't it ________ beautiful one?

找出错误并改正。

—What do you think of the grammar book?

—Oh, it is really useful book, which is worth reading second time.

I want to be ____ scientist like Qian Xuesen when I grow up.

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