Please write a brief statement explaining why each sentence is correct or incorrect 1. George has chosen Walt Disney as the subject of his report.
Correct - george is singular so his is the right pronoun

2. Several others in our class have also submitted his or her topics.

3. Dominic, one of the Perrone twins, has chosen Alfred Hitchcock as their subject.

4. Neither George nor Dominic will have difficulty finding material for their report.

5. Each of these moviemakers has left their mark on the world.

6. Either Minnie or Sue offered their help with proofreading.

7. Each of the boys refused politely, saying that they would proofread the report on their own.