4 Complete the exchanges with the sentences below in your notebook. It's my mum's recipe. It sounds simple! . Is it easy to make? And then? .> 1 A: These biscuits are delicious. B: Thanks! It's my mum's recipe. 2 A: ... B: Yes. First of all, use a spoon to mix the butter and flour. 3 A: ... B: Then, you add the chocolate pieces. 4 A: Put them in the oven for 20 minutes and that's it. B: Wow!...​