They can do many kinds of work 中的work怎么不加s,不是有many kinds of

They can do many kinds of work 中的work怎么不加s,不是有many kinds of Many kinds of work ________ done by computers. many kinds of work 后谓语动词单数还是复数? many kinds of work用is 还是are we can do many kinds of ( a ) on weekends. many kinds of翻译 many kinds of What kinds of work does man do? we can see ()flowers 为什么填all kinds of?many kinds,many kinds There are many kinds of flower s---- 是many kinds of fruits还是 many kinds of fruit Many kinds of work ___of robots 填are done还是is done