托福 TPO 18 的conversation 2 中有几个地方不懂,

托福 TPO 18 的conversation 2 中有几个地方不懂,
Well,I’m glad you redid your outline.I fed a few comments,but nothing you have to act
on.It’s in good enough shape for you to start writing you paper.
fed a few comments是什么意思?尤其是fed?
but nothing you have to act on.尤其是act on
这段话大概意思是什么?
还有就是在下段话中
Yep,it’s not my study.It’s my colleague’s in the marketing department.She needs people
to watch various new TV programs that haven’t been broadcast yet,then indicate on a
survey whether they liked it,why,if they’d watch another episode.It’d be kind of fun plus
participants get a $50 gift certificate.
if they’d watch another episode