Question: Susan giggled and Vrenna smiled.
They thought the play was funny.

Answer: it is not possible to tell

Question: Steps inside the outer columns lead up to galleries at four levels, and the view from the top gallery is spectacular.
The sight to be seen from the gallery's top is spectacular.

Answer: yes

Question: All of us have to understand that we are citizens whether we like it or not, he warned.
Everyone is a citizen.

Answer:
yes