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9．It was not until dark ________ he found ________ he thought was the correct way to solve the problem. A．that；that B．that；what C．when；what D．when；that 解析：考查强调句型，强调not until句型，因此第一个空用 that；第二空用what引导宾语从句且在从句中作主语(he thought是插入语)。 答案：B 10．—Could I have my ruler back，please? —Sorry. I’ve forgotten ________ I put it. A．that it was where B．it was where that C．where it was that D．where was it that 解析：强调句作宾语从句，其中强调部分为where。 答案：C 11．Why! I have nothing to confess. ________ you want me to say? A．What is it that B．What it is that C．How is it that D．How it is that 解析：考查强调句的特殊疑问句式，根据疑问语序，排除 B、D两项；what作say的宾语，而how不能作宾语。 答案：A 12．It was about 600 years ago ________ the first clock with a face and an hour hand was made. A．that | 
