Their- Belonging to or associated with the people or things previously mentioned or
There- in, at, or to that place or position
They're- it is a contraction or they are
It's- is a contraction of it is.
Its- is the possessive form of it.
Who's- it is a contraction of "who is" could also be contraction of "who has" but it is less common.
Whose- belonging to or associated with which person
Good- to be desired or approved of.
Well- in a good or satisfactory way.
Affect- meaning to have an impact on something.
Effect- Is a change that is a result of or the consequence of an action or other cause.
Accept- the consent to receive something that is offered.
Except- not including; other than