Question

Once I heard the cucko sing ,choose adverb

Answer 1

Answer:

heard the cuckoo sing - adverb

Explanation:

pls mark mine as the brainliest

Answer 2

Answer:

Once

Explanation:

So once is the answer because it is a frequency adverb. 'Sing' and 'heard' are verbs. 'Cuckoo' is a noun and 'I' is a pronoun. 'The' is an article.

So mark it as the brainliest answer...