Answer:
a. while
Explanation:
My phone rang while I was in the meeting.
Answer:
The Water <u>of </u><u>Ocean </u> Is Very deep.
Answer:
Madeline wanders in a distant hallway while looking at the horizon in despair. (COMPLEX SENTENCE) 1. Madeline wanders in a distant hallway although her feet can't take the route anymore. (COMPOUND-COMPLEX SENTENCE) 2. usher sings a melancholy song with an unknown melody, although the meaning was clear. (COMPLEX SENTENCE).
C. Hearing her father cry leads her to realize that life is complex and full of uncertainty.