Answer:
The first box is:Van Lew was never accused of spying
The second box is:It explains the cultural bias of the time.
A. Helping verb, it describes the subject as it renames.
Nikita is the only witness to see you doing it but she made it up
To prove your innocence you would have to been with other people they would serve as witness saying you didn't do it even when you know you didn't in order to prove your innocence.
I'm not sure if it answers your question