নিচের কোনটি Adverb?

Down went the Titanic. The word 'down' is- 'Man cannot live alone'. The word 'alone' is used here as- The bird flew high. Here, the word 'high' is a/an- The pogramme was broadcast live. Here 'live' is_ Piya has slept only three hours. Which part of speech is the word only here? The adjective took place long ago. Here the word 'ago' is a/an- The boy writes well. Here well is a/an He runs fast, here 'fast' is ..... The sun went down. The underlined word is used here as a/an: A burnt child dreads the fire. Here 'burnt' is a/an-