When I saw Clara I realised that she ______ much in all those years.a.didn't changeb.wasn't changingc.hadn't changedd.hadn't been changing

To determine the correct choice to fill in the blank in the sentence, we need to analyze the context of the statement:

1. Contextual Understanding: The sentence refers to a realization about Clara after a period of time has passed. The phrase "in all those years" suggests that we are discussing a change (or lack thereof) over a considerable duration.

2. Choices Analysis:

   • a. didn't change: This suggests that Clara did not change at all over the years, which fits the context well.
   • b. wasn't changing: This implies an ongoing action of not changing, which is less fitting since the realization pertains to a complete state after the years passed.
   • c. hadn't changed: This indicates a lack of change before a certain point in the past, which also fits the context, emphasizing the completion.
   • d. hadn't been changing: This suggests an ongoing state of non-change, which is less appropriate considering the finality implied by "realized."

3. Best Option: Given the need for a definitive expression of change or lack thereof, the best choices would be a. didn't change and c. hadn't changed. However, considering the context of realization, "hadn't changed" is more frequently used in reflective contexts.

Conclusion:

The most fitting answer is c. hadn't changed. It appropriately conveys the realization regarding Clara's unchanged state over the years.