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• Tomygreatrelief,myoldcamera           wellbeforeIhaditr...

• 问题详情：Tomygreatrelief,myoldcamera           wellbeforeIhaditrepairedbyanexperttwoyearsago.A．worked   B．wasworkingC．hasbeenworked   D．hadbeenworking【回答】D【解析】考查时态。句意：令我欣慰的是，我的那台旧相机在两年前，给一位专家修理之前，一直...
• 2019-04-0315969