Only when he left his home _ to know how...[高一][英语]-【生意地·K12教育】

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Only when he left his home _ to know how...[高一][英语]

2021-12-03 答题：高一英语（严老师）

【题目】Only when he left his home _________ to know how important the family was for him.

A.he began B.did he begin C.had he begun D.he had begun

【答案】B

【解析】

考查部分倒装。句意：只有当他离开家的时候，他才开始知道家庭对他是多么的重要。“only+状语”位于句首时，其后要用部分倒装。根据主句的谓语动词用的是过去时可知，这里也应该用一般过去时，用助动词did。故选B。