The strategies they used worked out fine中为什么要用worked out fine

问题描述:

The strategies they used worked out fine中为什么要用worked out fine
请分析一下句子结构,并说明为什么要填worked out fine

句子的主语:the strategies they used,they used 后置定语修饰the strategies
谓语部分:worked out fine fine 修饰动词短语worked out
整句翻译:他们所用的策略很有效work为什么为什么要用过去式呢,还有used和worked两个动词可以放在一起么..the strategie they used这是主语worked out fine这是谓语因为他们用已经过去了,结果自然也是过去时,明白了吗?加油!