Упражнение 65. Выберите нужный артикль или оставьте существительное без артикля

Пример: Be forewarned: (a, an, the) the camera as we know it may soon be obsolete.

1. At (a, an, the) ______ dawn of (a, an, the) ______ twenty-first century comes (a, an, the) ______ invention so advanced that it may completely rid (a, an, the) ______ United States of America of every camera that had come before it. 2. (A, An, the) ______ digital camera, which allows photos to appear on (a, an, the) ______ computer monitor, takes up virtual space, not physical space. 3. As (a, an, the) ______ result, if you see (a, an, the) ______ bad photo on (a, an, the) ______ screen, you can simply erase (a, an, the) ______ poor photo to make room for (a, an, the) ______ new one. 4. With this new technology, (a, an, the) ______ aunt can even e-mail photos to her niece or nephew, or she can put them on (a, an, the) ______ Web page. 5. Digital cameras also allow people to alter (a, an, the) ______ appearance of people or things, which, according to many critics, is (a, an, the) ______ chief disadvantage of (a, an, the) ______ digital camera.