only

[Cosmos]

Hello, teacher!

I think these are all OK. Am I right?

1. It's too bad you are only going to be here for 2 months.
2. It's too bad you are going to be here only for 2 months.
3. It's too bad you are going to be here for only 2 months.

Thank you very much.

[Alan]

All possible, but 3 is the most precisely expressed.