The oiling is
done (①with higher wages, well-ventilated factories and piped music), (②and
by psychologists and “human-relations” experts )①句中with后面的,是作done的状语吗?②句作什么成分吗?
-how do you find the club -i would rather not __(join) it .everyone is saying its management is going from bad to worse.标准答案为 have joined .疑问:这里是表示对过去的假设,为什么不用had joined