Is there a way to take a practice exam and NOT look at the interspersed answers? [closed]

I want to take some SAS practice exams, of which there are 3 types: SAS, SAS Certification, and User-written. Here's an example of the SAS practice exam

Now, sometimes there are multiple choice (varying 1-4, but sometimes 1-6), and other times just text:

Run the program and answer the following questions:
Question 1: What is the value of the product variable in observation 148?
Answer: Slipper

The problem is:

1. If you space down one line, you'll see the answer.
2. If you print out the tests, sometimes they are 56 pages long.

One possible solution is to print out the entire document and manually black out the answers. Then use the online pdf to view answers. Cut-n-paste of paper overlays is too much.

Ideally, there'd be a program that reads text, and advances it correctly.