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[误] In the morning there are hundred of old people walking in the park.
[正] In the morning there are hundreds of old people walking in the park.
[析] 当表达数百，数千时，要用hundreds of和thousands of 这一结构。
[误] The class begins at eight a. m.
[正] The class begins at 8 a. m.
[析] 与符号或与缩写的字母连用时一定要用数字，如：43%， 67, No.2…
[误] Two?fifth of the books are sold out.
[正] Two?fifths of the books are sold out.
[析] 分数表示法，分子用基数词，分母用序数词，但分子大于1时，分母要在序数词后加s。
[误] Tom was born on July eighteen.
[正] Tom was born on July eighteenth.
[析] 月日的表达法有美语和英语两种。美语 July 18 读作 July eighteenth 英语 July 18th 读作 July the eighteenth
[误] I'll go to school at 7∶30 a. m. in the morning.
[正] I'll go to school at 7∶30 a. m/ at 7∶30 in the morning.
[析] a. m 即表达在早上之意，不要再用in the morning.
[误] The film will begin at three quarters past one.
[正] The film will begin at one quarter to two.
[析] 大于30分钟时不要使用past，而要用差多少不到几点的to来表达。
[误] Three time three is nine.
[正] Three times three is nine.
[析] times 此处作为"乘"讲一定要加s。英语中乘除法表达式如下：
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