Use the phrases to complete the exchanges.

1. Why weren't you online last night? - I couldn't ... . I don't know why.
2. Have you had a reply from Ann, yet? - I don't know! Let me ... .
3. Why is this computer so slow? - It's not the computer. It takes time to ... a music ... .
4. Can you edit pictures on your computer? - Sure, but first I have to ... the ... on my computer.