Answer :
In context, the best version of the underlined portion of sentence 9 is:
- I had been taught to ride a bike.
Sentence
A sentence is known to give meaning and structure to a paragraph. Sentences are known to a combination of words that actually expresses a complete thought.
There are:
- Simple sentences
- Compound sentences
- Complex sentences.
From the given question, the first option is actually the best revision of sentence 9. This is because it maintains the information that he was taught bike riding by someone.
Learn more about sentences on https://brainly.com/question/3653791