**Rule:** The Present Continuous Tense ('is/are' + verb-ing) is used to talk about definite plans and arrangements for the future. The phrase 'It has all been decided' confirms that this is a fixed plan. Option (a) is for predictions or spontaneous decisions. Option (b) is for schedules. Option (d) is future perfect.

**Rule:** This is a First Conditional sentence ('if' + simple present, ... 'will' + base verb) expressing a real future possibility. The main clause describes the intended action if the condition is met. 'will give' correctly states this future action, which is a promise or intention. Option (d) is for hypothetical situations.

**Rule:** The Future Perfect Tense (will have + past participle) is used to show that an action will be completed before another future event. The company's adaptation will be finished before the regulations are implemented. Option (d) implies the process will be ongoing, not completed.

**Rule:** The Simple Present Tense is used for future events on a fixed schedule or timetable, such as the opening times of public places like museums, shops, and libraries. Options (a), (c), and (d) are all possible ways to talk about the future, but for a fixed timetable, the simple present is the most standard and concise choice.

**Rule:** The Future Perfect Tense (will have + past participle) is used to indicate the completion of an action by a future deadline. 'By next year' specifies the time by which the action of hiring fifty new employees will be finished. Options (a) and (b) describe the action as ongoing, not completed.

**Rule:** The Simple Future Tense ('will' + base verb) is used to make promises at the moment of speaking. The word 'promise' explicitly signals this function. Option (c) is the correct form. Option (d) 'am not going to tell' would suggest a prior decision not to tell, which is less natural with 'I promise'. Option (a) and (b) are incorrect tenses for making a future promise.

**Rule:** The 'be going to' future is used for predictions based on clear present evidence. The fact that 'He is running to catch the bus' suggests he is late and provides strong evidence for the prediction that he will miss it. Option (a) 'will miss' is for predictions without such immediate evidence. Options (c) and (d) are incorrect.

**Rule:** The Present Continuous Tense ('is/are' + verb-ing) is used to talk about fixed plans or arrangements for the near future, especially when the time and duration are specified. This is a planned visit. Option (a) is future perfect. Option (b) is simple present. Option (d) is past.

**Rule:** This is a First Conditional sentence (if + simple present, ... will + base verb) that predicts a likely future result based on a present action. The main clause states the logical consequence of reckless spending. 'will go' correctly expresses this future outcome. Option (b) is future perfect. Options (a) and (c) are incorrect.

**Rule:** The Future Simple Passive ('will be' + past participle) is used here. The verb 'hope' is often followed by a 'will' clause to express a wish for the future. The passive voice is needed because the 'breakthrough' is the receiver of the action 'to achieve'. Therefore, 'will be achieved' is the correct form.