Thesummerof2004wassohotinChina,

发布时间：2020-07-26 10:54:50

The summer of 2004 was so hot in China, why don't you visit Xi'an in ________ autumn?A.theB.theseC./D.that

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C解析在表示季节、时间点时不用定冠词，又如：in summer, at noon, at midnight; these用于指代名词的复数形式；that用于指代单数形式．
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