"prepare an exam" is correct and usable in written English.
You can use it when referring to getting ready for a test or an assessment. For example, "In order to get ready for the upcoming test, I will need to prepare an exam."
"He prepared for it like you'd prepare for an exam," Klein said.
They are often delighted to help students construct a paper or prepare for an exam.
"Or could someone become proficient by repeating the tasks you've already completed, in the way that a student might take practice tests to prepare for an exam?
But three invigilators working at different schools said that was grossly underestimating the time needed to prepare for an exam, to collate and record papers, which would routinely take an extra 45 minutes.
"You will use the journal to prepare for an exam, not the book," predicts Rashid.
Put simply, there's no better way to prepare for an exam than a solid eight hours in Snoozeville.
While the rest of the Wales squad can concentrate on Saturday's visit to Scotland, Roberts must also prepare for an exam two days later.
I know that it's hard to imagine a goalkeeper of a European national team ditching a match just to prepare for an exam.
That they let Jason's camera capture what it is like to prepare for an exam that only 200 or so people have ever passed is extraordinary.
These students might take the drug if they left too little time to prepare for an exam ("I thought: 'Oh no, only 3 days to go till the exam, I don't know a thing and I need to know it all by heart. What should I do?' And then I took Ritalin for three days and hardly slept").. Some students took stimulants just on the night before the exam in order to prepare for the test.
