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用正确的冠词a,an,the填空(不填则画“/”)。 1. I have _____ beautiful pen. _____ pen is blue. 2. It's_____dog. Its color is _____ black. 3. _____ moon is big and bright (明亮的). 4. This is _____ jacket. It's _____ orange jacket. 5. Look at _____ boy. He is _____ English boy.