如: aircraft,species, series, deer, fish, sheep, headquarters, means
例句:each aircraft is equipped with the most advanced technology (根据所修饰的词each来判断)
sheep are raised for their wool and meat、(按语境中的含义)
some, all, most, any, half, enough, the rest, theremainder, 与 疑问代词what, who, which, whatever,whoever, whichever, 的谓语单复数由其指代的词决定。
例句:Whatever was the matter?