だろう => Probably A N4
Sentence Endings
でなくてなんだろう => It's definitely A (and not something else) N1
Information, Report
ところだった => About to… N3
Will, Decision, Doing
を[踏「ふ」]まえて => Thinking of A N1
Based/focused/depending on
ふりをする => To pretend to (be) A N3
Adjectival, Description
[頂「いただ」]く => Received N4
Give and take advice
くらいだ/ぐらいだ => Around/about N5
Amount
だろうと[思「おも」]う => I think probably A N4
Sentence Endings
くせして => Even though A N2
Contrast,Surprise
~てください => Please do ~ N5
Asking and Telling
ただし => A。However, B N2
Contrast,Surprise
て[頂「いただ」]く => Do for N4
Give and take advice