However, if a business is heavily sales driven, it can make more sense to have a monthly operating plan, supplemented where necessary with weekly targets and reviews.
wherenecessary在非限制性定语从句中supplemented的什么成份？
wherenecessary 在非限制性定语从句中supplemented 的什么成份？
——网友的这个表述有错误。
本句中没有定语从句，也没非限制性定语从句。
supplemented where necessary with weekly targets and reviews，是一个过去分词短语，修饰 a monthly operating plan 的，作定语。意思是“拟定一个月度运营计划，并辅以每周目的和审察”。
where necessary 是 where it is necessary 的省略说法。插在 supplemented 和 with 中间，是修饰过去分词短语的。
However, if a business is heavily sales driven, it can make more sense to have a monthly operating plan, supplemented where necessary with weekly targets and reviews.
然而，假如一个企业是销售驱动型的，那样拟定一个月度的运营计划就更有意义，必要时还应辅以每周的目的和审察。
