Complete the dialogues

1) — I bought this e-book reader last week, but I don't know how to download books!
— ... how to do it.
2) — Oh no! I left my bag in the car!
— ... for you, Gran?
3) — There's a message on my computer screen. What does it mean?
— Let me ... .
4) — Can you help me with my homework?
— I'm afraid I can't. I don't understand it, either.
— ... tonight.
5)— My computer crashes all the time!
— It's all right. ... .
.