Open the brackets using the correct verb forms (Past Simple / Past Perfect):

1.When John`s parents (to shop) in Hamleys, they (to see) the Harry Potter Lego.
2. Sally (to walk) home when she (to meet) Jenifer.
3. While we (to watch) the horse fair, I (to find) a mobile.
4. While I (to talk) on the phone, my cat (to break) a cup.
5. When mum (to come) home, I (to play) the guitar.

1 were shoping/saw2 was walking/ met3 were watching /found4 was talking/ broke 5 came/ was playing