Select the most appropriate word to fill in the blank.

If the test booklet seal is broken or ______ with, bring it immediately to the notice of the invigilator.

tampered

The most appropriate word to fill in the blank is tampered.

The word tampered means to interfere with something in a way that could change the outcome. In this case, if the test booklet seal is broken or tampered with, it means that someone may have tried to change the answers or the questions. This is a serious matter, and it should be brought to the attention of the invigilator immediately.

The other words in the options do not have the same meaning.

• Adjusted means to make something fit better or to correct a mistake.
• Opened means to make something open or to start using it.