Explanation:

- The passage describes a scene of a train traveling through rural areas, with fields, children, and villagers.

- Blank (1) is about children who likely "shouted" and waved to the train, indicating their excitement.

- Blank (2) reflects an expression of solitude; "there" would typically fill in here to mean no passengers.

- Blank (3) describes the remaining person on the train, which is likely the "engine" driver.

- Blank (4) suggests a past routine for Suraj, indicated by "stood" implying him typically being in the field.

- Blank (5) is focusing on Suraj's current activity, surrounded by comparison to his usual activities.

- Option 1: "definitely" indicates clear certainty which doesn't fit the shift in context here.

- Option 2: "absolutely" emphasizes something unreservedly, incorrect given the context.

- Option 3: "actually" highlights the contrast from his usual routine, affirming his presence on the train.

- Option 4: "frequently" emphasizes regularity in past context, not situational.

Correct Answer: Option 3: actually.