Question

Dr. Lewis and ___ walked to the gym.

Answer 1

Dr. Lewis and I walked to the gym.

Answer 2

Answer :

This question is based on Subject-verb agreement.

Cambridge English Dictionary defines 'subject-verb agreement' as 'The person and number of the subject of the clause determine the person and number of the verb of the clause. This is called subject–verb agreement or concord.'

So, the correct sentence is :

Dr. Lewis and I walked to the gym.

In the given sentence 'Dr. Lewis' and 'I' are two singular subjects which are joined by 'and.' So, they become a compound subject and take the verb 'walked.'