A：Hi,Lily.Do you know how to make a banana milk shake?
B: Sorry, I don't know. You can ask Lucy for help.
A：Ok. Lucy, how to make a banana milk shake?
C: First,peel three bananas and cut them into pieces, then put the bananas into the blender. Pour some milk into the blender and turn on the blender for two minutes.
A：Oh, thank you so much. I will cook it right now.