This passage reads like a script for stage or film.
The medium that would best interpret this passage would be film.
1) Camera focus in on Mrs Peters' eyes slowly turn to meet Mrs Hale's eyes.
2) Mrs Hales' eyes moving to spot the hidden box.
3) Sound of a knob turning with camera showing closeup of knob turning
Panning in & out on eyes and knob is best achieved through use of a camera in film.
1 Is
2 Are
3 Knows
4 Is
5 Is and is again
6 Is
7 Are
8 Are
9 Were Are
We would need more information, are you sure this is all there is?
With the information that is given I believe that the answer is:
C. Constantly changing pieces of literature.
The mood is mostly upbeat. It is also very calming, in the background, there are some girls singing a smooth melody! What I mean by upbeat is that the song use has good instruments to get a good rhythm. While listening to the song you would most likely feel like you would want to move around. It is not the type of song to make you want to "Do the Harlem Shake". The song is also particularly old.