The use of the slash (/) indicates alternative options suggested by the examiner.
Capital letters are underlined in Exercise 3 as capitalization is required for names and addresses to get your mark.
In Exercise 5, all the relevant points have been provided. Any six out of these will give you the six marks for content ...but if expression hinders understanding you will lose all 10 marks.
You will also be severely penalized for transferring chunks of text to your own summary or even worse for copying in extent. This is called plagiarism and you will lose all marks.
You are expected to include all six relevant points in a paragraph of your own, using your own words as far as this is possible and providing effective linkers. For more information take a look at IGCSE Summary Writing