Answer:
- nervously
- startled
- tensed
- uneasy
Explanation:
In literature, mood refers to the emotions or atmosphere caused in the reader.
An anxious or worrisome mood, nervous about an imminent event, can be achieved by the chosen words because they are all related to restlessness. In that respect, nervously means easily disturbed or alarmed, startled means shocked, tensed implies tension due to agitation, and uneasy concerns feelings of trouble and anxiety.
