Choose replace the highlighted part sentence:  He is one of these students who has never cheated.

✔️ Correct Sentence:

He is one of these students who have never cheated.

 Explanation:

📌 Key Concept: Relative Clause Agreement

In the sentence:
👉 “one of these students who…”

• “who” refers to “students” (plural), not “one”
• So the verb must be plural

✔️ Correct Verb:

• students → have never cheated ✔️

Why other options are wrong?

• have never been cheating ❌
  → Continuous form not suitable here
• had never cheated ❌
  → Past Perfect (not needed, no past reference)
• have ever cheated ❌
  → Wrong meaning (no “never” → meaning changes)

 Important Rule:

👉 One of + plural noun + who + plural verb

✔️ Example:

• She is one of the players who are selected.
• He is one of the boys who have passed.

⚠️ Common Trap:

👉 If sentence is:
“The only one of these students who…”

➡️ Then verb becomes singular

✔️ Example:

• He is the only one of these students who has never cheated.

⚡ Final Tip:

👉 “One of + plural noun” → verb in clause = plural

Correct answer:

👉 have never cheated