Here’s a suggestion to complete Diana's text:

1. **my**
2. **grandmother's**
3. **often**
4. **quickly**
5. **was**
6. **didn't**
7. **than**

The completed text would be:

"My favourite possession is **my** old blanket. It was my mother’s and **grandmother's** mother gave it to her. It’s made of wool and is very pretty and soft. I have it on the bed in the winter but I **often** use it in the summer. It’s very warm! Actually, I can knit quite **quickly** so I’m making a colourful blanket for my little sister. It **was** her birthday last week but I **didn't** have time to finish it. I can’t knit faster **than** my grandmother! She was the fastest!"