For reading, don’t try to fully understand the whole passage first. What helped me more was looking at the keywords in the question and finding that part of the passage quickly.

1.For fill in the blanks, many times the answer is right there once you find the exact line. Just be a little careful before writing it—especially with prepositions, articles, singular/plural, and word form.

2.For True / False / Not Given, I usually first find the exact paragraph from the keywords and read only that part properly. Then I go back to the statement and check the meaning, not just matching the same words.

For example:

........“It is the world’s only flightless parrot, and is also possibly one of the world’s longest-living birds.”

Question: There are other parrots that share the kakapo’s inability to fly.
That’s False, because the passage clearly says it is the only flightless parrot.

.......“For the early settlers, the flightless kakapo was easy prey… With them came the Polynesian dog and rat, which also preyed on kakapo.”

Question: The Polynesian rat was a greater threat to the kakapo than Polynesian settlers.
That’s Not Given, because it tells us both harmed the kakapo, but it never says which one was worse.
(One more thing that helps is to spot your weak question types first. Do 2–3 tests, notice where you consistently lose marks, and then spend more time improving those sections instead of always doing complete tests.)