Complete the sentences with the correct forms of the verbs given (using past tenses). Use the full forms of the verbs.
Write one, two or four words in each gap.

1. While I was playing with my brother, our mother ... dinner. (to cook)

2. Last summer, my brother-in-law ... over a tree root and broke his leg. He couldn't take part in the competition. (to trip)

3. She ... before her parents came home. (to return)

4. My grandmother looks so tired. She ... flowers all day. (to plant)