Not until he left his home ______ to know how important the family was for him.
题型：不详难度：来源：
Not until he left his home ______ to know how important the family was for him. | A．had he begun | B．did he begin | C．he began | D．he had begun |
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答案
| B |
解析
| 考察倒装句。Not until放在句首的时候，后面的句子使有部分倒装的形式，故排除CD。再看时态，本句不需要使用过去完成时。句意：直到他离开家，他才知道家对他来说是多么重要。 |
举一反三
Only in this way ______ progress in your Japanese.| A．you make | B．you be able to make | | C．can you make | D．you can make |
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