Complete the text about Gabby using the past simple and past continuous. Gabby wants to do dance for the fitness part of a competition. Last month, she (0) bought (buy) a dance DVD, so she (1) (can) learn at home. But it was quite difficult because while she (2) (watch) the DVD, she (3) (also practise) the dance steps. When her mum (4) (come) home, she (5) (say) to Gabby, 'Why don't you join a dance class? It's a much better way to learn.' 'That's a good idea, (6) (answer) Gabby.

Here is the completed text with the correct verb forms:

Gabby wants to do dance for the fitness part of a competition. Last month, she (0) bought (buy) a dance DVD, so she (1) could (can) learn at home.

But it was quite difficult because while she (2) was watching (watch) the DVD, she (3) was also practising (also practise) the dance steps. When her mum (4) came (come) home, she (5) said (say) to Gabby, 'Why don't you join a dance class? It's a much better way to learn.' 'That's a good idea,' (6) answered (answer) Gabby.

Explanation of the verb tenses used:

1. bought: Past simple, because it refers to a completed action in the past (last month).
2. could: Past simple of 'can', expressing past ability.
3. was watching: Past continuous, as it describes an action in progress in the past.
4. was also practising: Past continuous, as it describes another action in progress at the same time as watching the DVD.
5. came: Past simple, an action that happened at a specific time.
6. said: Past simple, a completed action in the past.
7. answered: Past simple, because Gabby is answering at a single point in time in the past.