I'm stumped, too

I have a quiz sheet that has 105 questions, I have only 4 unsolved, can anyone help?
These are sayings, phrases, song,film,book or play titles:
I-------- one t-- f---
ten t------- s-- I a- a g-----
t-- l--- o- three o------
five f----- e-------
thanks in advance for any help

five finger exercise
the love of three oranges

ten thousand say I at a glance... (I wandered lonely as a cloud....)

Well, the last one still has me stumped. I can imagine "imagining one too fair" as something that fits... but I can't find the reference. Help?

I haven't figured it out, even with the help of the list of 9-letter I-words in a crossword-puzzle dictionary. Has any poet written "incurious one, the frog"?