In Death of a Salesman, what questions has the play raised so far (from Act one to Act two scene 3) and does the audience have any any answers?

The questions that arise though this point in the play
relate to Biff. Flashbacks raise questions about Biff's decisions at the end of his
senior year in high school and about Biff's break with
Willy. 

When Willy visits Charley's office and talks with
Bernard, Bernard tries to get answers to these
questions.

readability="6">

Bernard asks Willy if years ago he told Biff not
to go to summer school to make up the math class he
flunked.

Bernard knows that
Biff failed his math class and also knows that making up the class would have been easy
for Biff, yet Biff decided not to do this. Bernard also knows that Biff was upset by
something that happened in Boston when he went to visit his father on the
road. 

Bernard voices a question that the play will answer
a later scene:

readability="6">

“What happened in Boston,
Willy?”

The audience, at this
point, does not have any knowledge of what happened in Boston and what led to the Biff's
break with Willy. In the next scene, this information will be
revealed.

Withholding information in this way helps to
build tension in the play as it moves toward its climax.