Question

During our time in New York City, we traveled by taxi, rode in the subway, and even .

watch a musical
walking in the Central Park
took a ferry ride
took a Double-Decker bus

Answer 1

took a ferry ride.

The verbs in the sentence (traveled, rode) are both written in past tense. The verb that comes next must be in past tense and agree with the subject, we. This leaves on the options with took as a possibility. New York City is not known for their Double-Decker buses. However, the ferry does take people to the islands in New York Harbor. These islands contain the famous landmarks Ellis Island and the Statue of Liberty. It would make the most sense us choose "took a ferry ride".

Answer 2

During our time in New York City, we traveled by taxi, rode in the subway, and even took a ferry ride.

The answer is ferry ride.

The ferry ride fits the information to complete the sentence. This form of structure is called parallelism.
Parallelism is about creating the right phrase, sentence or clause to have a logical flow of the sentences. It also gives a clearer and relevant information.