SAT语法IE题 (A significant factor) to include in the budget when (buying) a car are the (costs of) fuel and maintenance and the (insurance payments).偶知道A错了 是主谓不一致可是“buying” 不是也错了么 没有动作的发出者

SAT语法IE题 (A significant factor) to include in the budget when (buying) a car are the (costs of) fuel and maintenance and the (insurance payments).偶知道A错了 是主谓不一致可是“buying” 不是也错了么 没有动作的发出者
SAT语法IE题
(A significant factor) to include in the budget when (buying) a car are the (costs of) fuel and maintenance and the (insurance payments).
偶知道A错了 是主谓不一致
可是“buying” 不是也错了么 没有动作的发出者啊

SAT语法IE题 (A significant factor) to include in the budget when (buying) a car are the (costs of) fuel and maintenance and the (insurance payments).偶知道A错了 是主谓不一致可是“buying” 不是也错了么 没有动作的发出者
用buying不用知道动作的发出者,只是叙述这件事情,买一辆车,when buying a car 分词作状语,这样说更简便,大家也都明白什么意思. 如果非要加一个人,就是 when somebody (want's to )buy a car 加 want's to 句意更通顺

就这句话来说应该是错的。应为when后面的是时间状语从句，完整的表达应该是：when (you are) buying a car，动作发出者是you。
时间状语从句的you are只有在主句和从句的主语一致的情况才可以省略，而原句的主语是A significant factor，所以从句的you are不能省略。
而如果省略了，句子的意思就变成是A significant fac...

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就这句话来说应该是错的。应为when后面的是时间状语从句，完整的表达应该是：when (you are) buying a car，动作发出者是you。
时间状语从句的you are只有在主句和从句的主语一致的情况才可以省略，而原句的主语是A significant factor，所以从句的you are不能省略。
而如果省略了，句子的意思就变成是A significant factor去买车而不是人去买车了。
举例：（正）You should look out for cars when crossing the street. 你过马路
（误）Cars should be looked out when crossing the street. 车过马路
这个句子要么想办法把主句主语改成You，要么就要when后面就一定要加you are。

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buying时when引导的是状态从句