3 Complete the sentences with the missing words. The first letter of each word has been given.
2 Many boxes are made of c___
12 Builders use c______________ to build roads.
13 All credit cards are made of p____
14 We use g________ to make things like windows because you can see through it.
15 S_____ wasused to make many old-fashioned houses.
16 Nis a material which looks like silk, but is much cheaper.
‒‒‒
17 W--
is a natural material that is used to make furniture and doors.
18 R______ comes from a tree and is used to make car tyres and shoes.​