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

### Instruction:
Which Opponents have a Score of 1–2, and a Team of arsenal, and Progress of first round?

### Inputs:
table_name: table, columns: ['Year', 'Team', 'Progress', 'Score', 'Opponents']

### Response:
SELECT Opponents FROM table WHERE Score = 1–2 AND Team = arsenal AND Progress = first round