Building blocks(积木) are still one of the most popular traditional toys today. Their interesting design and easy use attract children of all ages. Most traditional toys, like building blocks, were first made of wood. Today, wooden building blocks are still used, (A)______ now there are several other types of building blocks to choose from, like plastic building blocks.
Children build all kinds of things that they see in everyday life with building blocks. This gives them the chance to learn new things and life skills.
