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根據(jù)句意和提示寫出單詞，完成句子。

The Great Wall was built in a________ times to protect the northern border of our country．

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根據(jù)句意和所給的中文提示，寫出句子中的單例。

1．China is one of the oldest         （文明）in the world．

2．I'm afraid your pronunciation is not good．Try to speak more and         （改進）it．

3．Ms. Yang is         （耐心的）with us．We all like her．

4．Several other provinces also suffered a great loss         （除……之外）Sichuan．

5．Tony got the first in the English speech         （競賽）．

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