Question 21

Once indicates time sequence or the order of events.

The word "once" in the passage signifies a specific point in time when Alice had previously been down to the basement, establishing a sequential relationship between her past experience and her current feelings about the basement.

A) Maybe

"Maybe" does not indicate a time sequence; rather, it expresses uncertainty. In the context of the passage, it suggests Alice's hesitations about her feelings but does not provide information about the order of events.

B) Because

"Because" is a causal conjunction that explains reasons rather than sequencing events. In the passage, it is used to connect Alice's feelings or actions to their motivations, but it does not imply any chronological order.

C) But

"But" is a conjunction used to contrast ideas and does not provide any indication of time sequence. In this context, it highlights the juxtaposition of Alice's emotions rather than the order in which events occur.

D) Once

"Once" clearly indicates a specific moment in time when Alice experienced being in the basement. It establishes a temporal relationship, showing that her previous experience shapes her current actions and feelings regarding the basement.

Conclusion

The word "once" is the only option that explicitly denotes a time sequence in the passage, linking Alice's past experience with her present situation. The other options fail to indicate any chronological order, focusing instead on uncertainty, causality, or contrast. Therefore, "once" is definitively the correct choice for indicating the sequence of events.