помогите пж (даю 100 баллов) ;(

Complete the task. Jane and Dave are popular travellers. What did they use to do when they were young? Complete the sentences with the correct forms of the verbs given.

Write one word in each gap.

When they were young, they [...] [...] [...] public transport. (to use)
When they were young, they [...] [...] [...] cheap food. (to buy)
When they were young, they [...] [...] [...] in a small flat. (to live)
When they were young, they [...] [...] [...] once a year. (to travel)​