Which sentence correctly uses the superlative form of 'good' to describe the best performance in a competition?

• Her performance was gooder than anyone else's.
• Her performance was the goodest in the competition.
• Her performance was the best in the competition.
• Her performance was better than all others.

The Amazon River is longer than the Nile River.

Identify the comparative adjective in the following sentence: 'This book is more interesting than the last one I read.'

• more interesting

Which of the following is the correct comparative form of the adjective 'happy'?

• happier
• more happy
• happiest
• most happy