Question 28: Mark the letter A, B, C, or D on your answer sheet to indicate the unlined part that needs correction in each of the following questions: Upon reaching the destination, a number of personnel is expected to change their reservations and proceed to Hawaii.
Structure: A number of + Ns + V(plural)
⇨ Answer C. is => are
=> Before arriving, some of the staff were expected to change their reservations and proceed to Hawaii.
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