Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 21 to 25.

Bamboo is an amazing plant. Did you know it is actually a grass? In fact, giant bamboo is the largest member of the grass family. Some types can grow an incredible 90 centimetres in just one day. Some bamboo plants can grow to over 30 metres tall, which is as tall as a gum tree.

You probably know that bamboo is the favourite food of pandas, but chimpanzees, gorillas and elephants eat it too.

Bamboo is also extremely useful to people. It is a very valuable construction material because it is so strong. In fact, whole houses can be built from bamboo. In some parts of the world, bamboo is used as scaffolding (the frame used to support building work).

The range of things that can be made from bamboo is huge. Furniture, cooking utensils, and musical instruments can all be made from bamboo. Bamboo fibres can be used to produce a soft, cotton-like material for T-shirts and underwear. Bamboo fibres are also used to make paper. Bamboo can even be used to make bicycle frames and boats.

C. buss

D. grass