Answer: If it is internal dialogue (your thoughts) yes.
Explanation:
You can, in general. Each instructor may rely on her own preference, but there is no standing rule against using italics, and I think it helps the reader separate or differentiate between past and present. For external dialogue use quotation marks, for internal, use italics.
B. Circuit! Hopefully it’s the right answer
Answer:
expression (i think, i don't really know)
Answer:
is this letter supposed to contain stuff like date, address, etc
Explanation:
is this based on passage? if so please provide