The book store owes its popularity, in part, to Sarah. It was her idea to also stock stationary and art supplies, which have been a hit with customers. IXL

self-monitoring is in other words holding back your emotions for the better good. usually, people who can't hold their excitement, temper, or any other emotions, need to self-monitor themselves.   lol

what is the question ?

the participle phrase is decided. it is past tense.

i don't know the participle though, sorry.