Sentence 25: I was excited (25) ___ on your answer sheet to indicate the correct each of the numbered blanks from 25 to 29.
Answer: C. by

Explanation: "By" is the most appropriate preposition to indicate how you were excited in the context of the flight.

Sentence 26: The flight was delayed due to bad weather, and (26) ___ turn.
Answer: A. However

Explanation: "However" shows contrast, as it introduces a shift from the excitement to the delay due to bad weather.

Sentence 27: Things quickly took an unexpected (27) ___ when passengers started to get bent out of shape.
Answer: B. some

Explanation: "Some" works best here to indicate an unspecified, but notable change in the situation.

Sentence 28: The person next to me didn't seem to get many butterflies in his stomach, (28) ___ made me feel a bit better.
Answer: A. that

Explanation: "That" is used to connect the clause explaining what made the speaker feel better (the person staying calm).

Sentence 29: When we finally (29) ___ in D.C., everyone cheered with relief.
Answer: D. landed

Explanation: "Landed" is the appropriate verb to describe when the plane arrives at the destination.

So, the correct answers are:

• 25: C. by
• 26: A. However
• 27: B. some
• 28: A. that
• 29: D. landed