Past tense is used to express a past action or event while continuous or progressive tense is use to express an action that is going on. Hence, the needed change in the expression is:
- C. Change realized to realizing
Required Change
Sentence 12 needed a change in the form of tense employed for its grammaticality. The past form of verb used should be in continuous tense.
Therefore, the correct answer is C.Change realized to realizing.
learn more about form of tense from here: https://brainly.com/question/13956220
