It's more a question of standardisation than anything else, and the mentioned flaws testifies to the fact that the paper setters are not of a high intellectual/academic calibre as they theirselves have no standard! Well, currently, there are some four (4) dialects being practised in the world i.e., British, American, Canadian and Australian, so, there must be a set standard. They must notify that the exam will be conducted in this or that version of the language (British version is the standard if the examiners are not sick minded scums) which would make things better for aspirants. Good luck fellas.

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"Success is not final, failure is not fatal; it is the courage to continue that counts" (Winston Churchill)