把 the 填入句中的正确位置：

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A cow B is a C useful D animal.

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Let's A go B to C , cinema, shall D we?

把 the 填入句中的正确位置：

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A Beijing is the B capital of C People's D Republic of China.

把 the 填入句中的正确位置：

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This is A first B history C lesson this D term.

把 the 填入句中的正确位置：

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-- What is A headmaster B talking about?

-- Sorry, I C don't D know.