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Ngocyen12
2 năm trước
giải hộ vs rút gọn thui đầu đang bị lac nên suy nghĩ mãi ko ra 7√ x +3 / 9-x + 2√ x / √ x +3 +√ x +1 / √x -3 RÚT GỌN
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Supply the correct tense, simple past or present perfect tense of the verbs in parentheses. 1. We are now living on 72nd street where we (live) _____ for two year. 2. They (live) _____ in Washington from 1950 to 1955. 3. Before John came to the United States, he (work) _____ as a clerk. 4. Since coming here, however, he (work) ___ as a worker. 5. Smith (leave) _____ New York last month and (work) _____ in Chicago since then. 6. When I last saw him, John (feel) _____ very well. 7. I myself (study) ______ French since 1980. 8. We (buy) ______ this car two years ago and (drive) _____ it 5000 miles since then. 9. My former teacher was Miss. Smith. I (study) _____ with him for six months. 10. My present teacher is Mr. Jones. I (study) ______ with her for one month. 11. I (work) ______ him since 1970. 12. How long _____ you (learn) ______ English? 13. ____ you (meet) ___ him since we (say) ____ good-bye?

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