Improve the highlighted part of the sentence. Choose ‘No improvement’ as an answer if the sentence is grammatically correct.
‘When I was eight years old, I used to played with toys.

Correct option is A

The correct substitution of the highlighted words is (a) used to play.
Explanation:
The phrase “used to” is followed by the base form of the verb (also called the infinitive without "to"). The verb “played” is in the past tense, which is incorrect after “used to”.
· ✅ Correct: used to play
· ❌ Incorrect: used to played
Grammatical Rule Used:
· The structure for habitual actions in the past is:
· Subject + used to + base verb
· Example: She used to dance every weekend.
Information Booster:
· “Used to” expresses an action that was regularly done in the past but is no longer done.
· Do not use the past form of the verb after “used to.”
Example:
· When I was a child, I used to ride my bicycle to school.