Select the most appropriate option for blank No. 1.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4. i.e. when.
- The appropriate word to fill in the blank is "when."
- In this context, "when" is used as a conjunction to introduce a subordinate clause that indicates the specific time or event when the speaker was not afraid.
- The word "when" connects the two events - "boarding the flight" and "not being afraid" - and clarifies the relationship between them.
Thus, the most appropriate choice would be when.