A report generally should not be biased, so they should not use opinions, but instead they would use facts to sway to reader.
Answer:
I'm only having a guess here:
Two, empty, and several.
Explanation:
"Two"
describing how many bulldozers there are
"Empty"
describing the parking lot
"Several"
describing how many weeks the bulldozers have been in the parking lot for
D) to change so as to better suit your surroundings
Definition
make (something) suitable for a new use or purpose; modify.
-become adjusted to new conditions
The authors argument is that volunteering helps many people, not just those being directly benefited in visible ways. The author uses statistics from a study to support his/her argument.
So take this^ and add lots of info and textual support to create at least 8-10 sentences.