6. Study the table. Form adjectives ending in -ful or -less from the nouns (1-5). Check in your dictionaries. Use the adjectives in sentences of your own.

Explanation:

Based on the provided examples and common usage:

• 1. Success (noun) -> Successful (adjective, meaning having achieved success)
  Sentence: She had a successful career in music.
• 2. Care (noun) -> Careful (adjective, meaning taking pains to avoid danger or mistakes)
  Sentence: Be careful when crossing the road.
• 3. Thought (noun) -> Thoughtful (adjective, meaning showing consideration for others; or, deep in thought)
  Sentence: It was very thoughtful of you to bring flowers.
• 4. (Assuming the noun is 'Help') Help (noun) -> Helpful (adjective, meaning giving or ready to give help)
  Sentence: The customer service representative was very helpful.
• 5. (Assuming the noun is 'Use') Use (noun) -> Useless (adjective, meaning not having any purpose or effect)
  Sentence: The old computer had become useless.