What is the passive voice of "She quits her teaching job in school"?

Solution 1:

Quit is not really transitive with the noun job; it's too intimately linked with its object, and that object is usually an Object Complement clause, because the normal meaning is to stop performing some activity permanently, or at least for some time. (There are also Subject Complements, but not in this example.)

• He quit smoking.

There is also an economic idiom to quit which means to stop working at one's employment, permanently and voluntarily (as opposed, for instance, to being fired, which is permanent and involuntary, or being laid off, which is temporary and involuntary); the only direct object one can quit in this idiomatic sense is one's job, and so the object is frequently not expressed.

Thus it isn't really a transitive sentence because the verb and its object express an intransitive predicate -- like the idiom kick the bucket, meaning 'to die' -- and therefore can't be passivized.

• Harry kicked the bucket yesterday. ~ *The bucket was kicked by Harry yesterday.
• Harry quit his job yesterday. ~ *Harry's job was quit by him yesterday.

Solution 2:

In my opinion, "quit" by definition is an active verb; I would switch to something like "The teaching job was vacated." or "The teaching job was abandoned."

One would use the passive voice in this instance, I'd imagine, if you want to put the focus on the job, as opposed to the person who quit the job.

Solution 3:

One way I remember how to use and recognize passive voice is that it often has the effect of "hiding the source". I find it most useful when avoiding blame/credit. Consider:

• (passive) "Your lamp was broken." versus (active) "I broke your lamp."

• (passive) "My code was fixed afterwards." versus (active) "Someone else fixed my code afterwards".

In the case of quitting a job, only the person doing the job can quit it and trying to use passive voice here would sound awkward in my opinion if you tried.