Translation:These shoes are too small!
You can't say "these pair of shoes" in English. However you can say "this pair of shoes" or "these pairs of shoes"
Well that isn't correct English, pair is singular not plural. "This pair of shoes is too small" is what you want.
"this pair of shoes is too small" was rejected but I think it's fine
funny how in other sentences they require us to write pair, but here they completely forgot it
太……了 is used to put emphasis on something. E.g. 太好了！Fantastic!! 我太爱你了！I love you so much!