Short Answer 
The process of selecting the correct word to fill in the blank involves analyzing the options, eliminating those that do not fit the context, and choosing the best option. In this case, after ruling out “quite,” “beyond,” and “already,” the word “almost” is identified as the appropriate choice for the sentence, as it aligns well with time expressions.
Step 1: Analyze the Options
Begin by reviewing the options available for filling in the blank. In this case, we focus on the word choices: “quite,” “beyond,” “over,” “already,” and “almost.” Each of these words has specific rules about when and how they can be used, especially concerning time expressions.
Step 2: Eliminate Incorrect Choices
Next, eliminate the options that do not fit the context. For instance:
- Quite is not appropriate before precise time periods.
- Beyond does not suit the context.
- Already would require a different sentence structure.
Step 3: Choose the Best Option
Finally, evaluate the remaining options to select the most suitable one. In this case, “almost” is the correct choice. It fits naturally with time expressions, as in “I came back home almost a week ago.” This usage aligns perfectly with the structure of the original sentence, confirming that “almost” is indeed the right word to fill in the blank.