What plays important roles in the game?句中what指

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/31 16:05:28

What plays important roles in the game?句中what指
多个roles为什么还用单数形式?

译：在这个游戏里,什么（人或物）扮演重要的角色?
what 之后用plays只能说明what是第三人称
而roles用复数应该表示有多个重要角色,不只有一个,所以,两者并不矛盾.
再问：如果回答有两个人以上是不是用play?
再答：例如：他扮演着2个角色，一个是什么，一个是什么。 plays修饰主语，不影响后面。
再问：您理解错了，如果回答是汤姆和杰瑞两个人呢？
再问：汤姆和杰瑞扮演的这些角色。
再答：恩恩，也是。就是要看哪一个因，哪一个果，哪一个已知，哪一个未知。而我们在不知道别人答案的情况下，该用什么呢？
再问：哦，请问我这样理解行吗：已知单数或不知具体情况，就把what当单数，而已知是复数便可把what当复数。麻烦您了。😄
再答：我觉得可以啊

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