1.
Don't overthink it - Usually the most simple explanation is the right one.
2. Read the questions first - This helps you eliminate useless text.
3. Don't stay on one word or question too long - This will take away precious time! Skip it, and if you have time left, try again at the end.
4. Know your signal words - knowing words such as Never, ever, but, and, however, first of all etc, help you find answers more easily
5. Watch some Netflix - The easiest way to exand your vocab? Watch some shows or films with English subtitles turned on.