There still ( ) the phenomenon of abuse of sources.There still ( ) the phenomenon of the abuse of sources.( )中填exists还是exist?为什么source不可数,多加了个s,意思是资源

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There still ( ) the phenomenon of abuse of sources.There still ( ) the phenomenon of the abuse of sources.( )中填exists还是exist?为什么source不可数,多加了个s,意思是资源
There still ( ) the phenomenon of abuse of sources.
There still ( ) the phenomenon of the abuse of sources.
( )中填exists还是exist?
为什么
source不可数,多加了个s,意思是资源

There still ( ) the phenomenon of abuse of sources.There still ( ) the phenomenon of the abuse of sources.( )中填exists还是exist?为什么source不可数,多加了个s,意思是资源
exists.
类似 there is , there are, 用单数还是复数看下面的词.
这里 phenomenon 是单数, 所以用 exists
abuse of sources -- 滥用资源
全句:滥用资源现象依然存在.