Mark slept the entire day; his friend felt that the entire day had been wasted by him.

The verbs in every sentence must agree in tense, mood, and number.

The first and second clauses are in different tenses in the given sentence.

Mark slept the entire day; his friend felt that the entire day had been wasted by him.

The sentence lacks parallel structure. The first part is in past tense ("Mark slept the entire day"), but the second part switches to present perfect tense ("had been wasted").

No change

Mark slept the entire day; his friend felt that he had wasted the enitre day.

The sentence is correct because it maintains consistency in verb tense. "slept" and "had wasted" are both in the past tense, creating a coherent timeline. It accurately describes Mark’s action (sleeping) and his friend’s perception (feeling that Mark had wasted the day).

he had wasted the enitre day

Mark slept the entire day; his friend felt that he was wasted the entire day.

The sentence is incorrect because it uses "wasted" to describe Mark’s state after sleeping. There is an Unclear comparison. The word "wasted" can have multiple meanings depending on the context. It is unclear why Mark’s sleeping would make his friend feel "wasted." Maybe his friend felt Mark was unproductive because they couldn’t spend time with Mark. Adding some context or clarifying the friend’s

feelings would make the sentence correct.

Mark slept the entire day; his friend felt that the entire day have been wasted by him.

The sentence is incorrect because it uses "have been" instead of "had been." This doesn’t maintains the proper past tense consistency.

the entire day have been wasted by him.

Correct sentence

Mark slept the entire day; his friend felt that he had wasted the entire day.

Option

B

Can you summarize what you’ve understood in the above steps?