但是，有时候不容易决定主词是单数还是复数。试选择适当的字，填妥以下的句子。

But sometimes it may not be easy to tell whether a subject is singular or plural. See if you can complete the following sentences by choosing the correct word.

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对数据库表来说，从项目一开始就要确定表名是采用复数还是单数形式。

To database watch, be about to decide watch name is to use complex number or odd number form at the beginning from the project.

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无论是单数形式还是复数形式都出现在了歌词当中。

Both the singular and the plural form of the word appear in the lyrics.

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