应把is改为are。 类似的词有:team, class, audience等。 5. I bought some potatos and tomatos at the supermarket. 中学阶段以“o”结尾的名词中有四个词变复数时要加es, 它们是tomato, potato, Negro, hero; 其余的都加s变为复数。 6. This has nothing to do with...