4．       headmaster gave us a lecture on food safety on      June.6．（　�。�
A．The；/B．/；/C．The； TheD．A； a

分析 校長在6月6日給我們作了一個關(guān)于食品安全的講座．

解答 答案：A．
本句中的校長是特指大家都知道的"校長"，第一空用定冠詞；表示日期的時間名詞前不用任何冠詞，故選A．

點評 對于冠詞要注意他們的所指是泛指還是特指，并根據(jù)句子的意思來做出最后的判斷，尤其要注意一些習(xí)慣用語的表達．

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