Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What are the grades served at Manchester Junior-Senior High School?

### Inputs:
table_name: table, columns: ['School', 'City / Town', 'Website', 'Size', 'Principal', 'Grades', 'IDOE Profile']

### Response:
SELECT Grades FROM table WHERE School = Manchester Junior-Senior High School