Task 6. Complete the sentences using the correct word in brackets.
You may need to add re-, -ness, -ly, -less or -ful.
1. He ran very ______ (quick) to catch the bus.
2. This broken toy is ______ (use).
3. The ______ (dark) outside made me feel sleepy.
4. Let's ______ (build) the castle. It fell down.
5. Be ______ (care) with the hot tea.