The key to exercise solutions in chapter 14 - What a load of rubbish! for the textbook Outcomes Pre-Intermediate - Student's Book with authors Hugh Dellar and Andrew Walkley from National Geographic Learning
Question
Work in pairs. Decide if each container is usually made of metal, glass, plastic, cardboard or cloth.
Answer
Metal → can, tin (possibly tray)
Glass → jar (also bottle)
Plastic → pot, tray (possibly carton, bar and packet)