Completar frases Complete the text 6th (Unit 5)Versión en línea Complete the text 6th (Unit 5) por JUTH TEACHER 1 maths complicated us century about simply batteries history learn school great What did you do at today ? Lots of things . Art , , science and Spanish . And we started a project . A project ! What's it ? It's about the invention of machines in the 19th . It's really interesting . I like history . What did you in science ? Something about and electricity . I didn't really understand it . It was very . Well , why don't we go to the Science Museum at the weekend ? The museum always explains things . That's a idea . Can I ask a friend to come with ? Of course .