Name an example of wedge. screw. inclined plane. lever. pulley. wheel and axle.
door stop. drill bit. truck loading ramp. nut cracker. crane. door knob.
A book usually written by someone else. it's usually about a famous person but someone who isn't well known writes about them. they conduct interviews and stuff but the the person it's about doesn't write anything about it.
ex. taylor swift
author: John brown
In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".