Put the sentences (a-c) in the correct order, then fill in the blank to make a logical text

17: Put the sentences (a-c) in the correct order, then fill in the blank to make a logical text.

Our school organized a trip to the local museum. Everyone was excited, but __.

a. Some students forgot their permission slips at home.
b. We managed to solve the problem by calling their parents.
c. The trip was almost canceled due to this mistake.

A. a-c-b                          B. b-a-c                   C. a-b-c                 D. c-a-b

18. Choose the sentence that can end the text (in Question 1) most appropriately.

A. After that, everyone enjoyed the museum and learned a lot about history.
B. The trip was very disappointing because many students couldn't go.
C. Some students were unhappy, but the teachers found a solution.
D. The trip turned out to be more difficult than we thought.