填空题 He has taught English at a local language school 1 (自从他10年前离开了家).

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【正确答案】 1、He has taught English at a local language school since he left home ten years ago.    
【答案解析】本题测试时态。“自从……以来”要用since，since引导的时间状语从句内需用一般过去时。