Question with the example sentence

Question

Hello,As I read this sentence over and over again I think their is a word missing at the end.Les garçons ont passé leur examen et tous l'ont eu. Shouldn't the word passé be at the end of eu?ThanksNicole

Accepted Answer

You may not have come across the lesson on «passer un examen» yet - it never means "passed an exam", so passé cannot be used here. 
To 'pass an exam' there are 3 verbs that can be used - réussir (à)/obtenir/avoir un examen. The sentence quoted uses «avoir un examen» - literally 'they all have had it'. 
to-pass-an-exam-versus-passer-un-examen
https://progress.lawlessfrench.com/my-languages/french/view/3174

Answer

You can think of "passer un examen" in this context as "to experience" or "undergo" as opposed to "to pass."