Which word is a noun in the following sentence?

the meeting was attended by everyone.

a. meeting
b. by
c. attended
d. the

Identify the homophone pair that needs to be corrected in these sentences. if your going to the concert, may i ride in you're car too? their house is on the way there. it's going to be a long night, since it's already close to midnight. a. it's/its b.your/you're c.to/too d.their/there