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ainted B. hasn’t painted C. hasn’t been painted D. hadn’t been painted long_____ at this jobs? Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed changes__ in the city, and a lot of factories__. A. have been taken place。 山東省泰安市肥城市第三中學高一英語人教版必修 2《 Unit 3 Computers》 Grammar 學案 【