Final answer:
The question involves combining four sentences into one using time words, resulting in a combined sentence that reflects the simultaneous actions of the manager reviewing her presentation and the assistant setting up technology in the conference room.
Step-by-step explanation:
The task is to combine sentences a), b), c), and d) into a single cohesive sentence using time words. To achieve this, it's essential to identify the main actions and their corresponding agents, while also creating a logical sequence that conveys the simultaneous nature of the events. Here is a possible combined sentence:
While the manager was reviewing her presentation in the conference room, her assistant was simultaneously setting up the technology.
The use of 'while' establishes the concurrency of the two actions, and by incorporating 'in the conference room,' we provide the setting for these actions, effectively combining all four original sentences.