问题
选择题
Not until he walked into the classroom that he left his dictionary at home.
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答案
A
考查倒装语序。此处not until置于句首, 主句应用倒装语序, 故首先排除C和D两项; 另外, 由句子时态是过去时可知此题选A。
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Not until he walked into the classroom that he left his dictionary at home.
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