There is no one-size-fits-all answer to this question, as the best way to pass a proofreading test may vary depending on the test and the individual. However, there are some general tips that may be useful:
-Read the instructions carefully before starting the test, so that you understand what is required of you.
-Take your time when proofreading the text, and look for any errors that may be present.
-Pay attention to detail, and don't hesitate to ask for clarification if anything is unclear.
-If possible, get someone else to proofread the text as well, to help you catch any mistakes you may have missed.