Not until he left home ______ to know _______ important the family was for him.A
题型：不详难度：来源：
Not until he left home ______ to know _______ important the family was for him.| A．did he begin; what | B．had he begin; how | | C．did he begin; how | D．had he begin; what |
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答案
| C |
解析
| 本题考查倒装和从句。句意：直到离开家，他才开始意识到这个家对他来说是何等的重要。：not until引导的从句置于句首时，主句需用部分倒装。主从句的动作基本同时发生，故用一般过去时。第二个空所选之词修饰important，故用how。 |
举一反三
The news came as quite a shock to us _____ a ship with 82 passengers on board sank near the north coast.| A．what | B．that | C．when | D．where |
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He got up late and hurried to his office, ________ the breakfast untouched.| A．left | B．leaving | C．to leave | D．leave |
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