What do you need to ask when questioning someone's opinion?

to ask someone's opinion you need to ask a question first.

for example:

Q: do you like dog or cat? what's your opinion

A: I like cat

two factors or characteristics of a chapter that might make it difficult to read would be words i don't understand, or if i don't fully understand what's going on in the chapter. strategies i can use to get through the difficult material would be a dictionary, and re-reading previous chapters to get a better grasp of what the author is trying to say.