【题目】He_________himself advanced English all by himself by the time he turned 18.
A.taughtB.had taughtC.has taughtD.would teach
在线课程【答案】B
【解析】
考查动词时态。句意：他在 18 岁之前已经自学高级英语课程。根据后文by the time可知应用完成时态，且“自学”发生在“turned”之前，即“过去的过去”故用过去完成时。故选 B。
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He himself advanced English all by himself by the time he turned 18.A.taughtB.had taughtC.has taught
编辑：chaxungu时间：2026-04-27 02:53:55分类：高中英语题库
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