Identify the sentence which does not have a subject-verb agreement error.
1. The dog seem agitated. 
2. My family are coming over for dinner. 
3. All the guests have been arriving.
The sentence that does not have a subject-verb agreement error is: "All the guests have been arriving."
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify the sentence which does not have a subject-verb agreement error.

### Input:
1. The dog seem agitated. 
2. My family are coming over for dinner. 
3. All the guests have been arriving.

### Output:
The sentence that does not have a subject-verb agreement error is: "All the guests have been arriving."