单词leaf(树叶)的复数形式是leafs还是leaves?

there be句型中be动词的单复数取决于其后的主语,a lot of rubbish(不可数名词),因此后面谓语动词要用单数。 6. 解析:选A. 主语为coal, 是不可数名词。根据题意,此处要用被动语态。 7. 解析:选A. 主语Stories of the Long March 是书名,谓语动词要用第三人称单数形式。 8. 解析:选C. 此处mathematics ...

—Yes,I know ___ very well． A．he B．himself C．him D．his ( )20．A koala usually gets up and eats ___ at night． A．leaf B．leaves C．leafs D．leavs ( )21．People often eat ___ the day and sleep ___ night． A．in,in B．at,in C．at,at D．during,at (...

languages monkeys zooes calculators childs stories leafs Chinese好像复数没变 watches goldfishes 多给点分！