Interrogative adjectives worksheet for Grade 4 students, featuring questions to practice "Which, What, Whose" with a clean, educational design.

Explanation:
We are given three interrogative adjectives: Which, What, and Whose.
Our job is to choose the correct one for each sentence, based on what the blank is asking.

Let’s go one by one:

1) ______ of your friends will be attending the event?
→ We’re choosing *some* friends from a known group (your friends). That means we’re selecting from a limited set.
✔ Use Which.

2) ______ dog is barking in the backyard?
→ There may be many dogs possible, but we don’t have a specific list — it’s open-ended. Also, “dog” is singular and not owned yet in the sentence.
But wait — let’s compare:
- *Whose* would ask about ownership: “Whose dog…?” → implies we know there’s a dog, and want to know who owns it.
- *What* dog? Sounds odd — “What dog” is rarely used unless specifying type (e.g., “What kind of dog?”).
- *Which dog?* implies there are a few dogs, and we pick one. But the sentence says “the backyard” — likely only one dog is barking, and we want to know *whose* it is.
✔ Most natural: Whose — because we’re asking about ownership: *Whose dog is barking?*

3) ______ responsibility is it to ensure the report is submitted on time?
→ Asking about *what kind* of responsibility — not ownership, not choice from list. It's open-ended.
✔ What responsibility? Yes — “What responsibility…” is standard.

4) ______ car belongs to your friend?
→ Again, asking about ownership.
✔ Whose car? Correct.

5) ______ book did you borrow from the library?
→ You borrowed *one* book from *many* possible books — so you’re selecting from a known set (books in the library, or books you could have borrowed).
But actually, in everyday English, we usually say Which book? when we assume the listener knows the options (e.g., you told me you borrowed a book yesterday — which one?).
If no context, sometimes What book? is used too. However, since the instruction gives only *Which, What, Whose*, and “book” is not owned by someone in the sentence (it’s from the library), and we’re picking one item from many, Which is best.
✔ Which

6) ______ class are you enrolled in this semester?
→ You’re choosing from a set of classes offered — a limited list.
✔ Which class?

7) ______ of these paintings is your favourite?
→ “These paintings” = a specific set given. So we’re picking one from that set.
✔ Which

8) ______ recommendation led you to this restaurant?
→ Asking about *what kind* of recommendation — e.g., from a person, a review, an app? It’s open-ended.
“Which recommendation?” would imply there were specific recommendations offered (e.g., “I gave you three recommendations — which one…?”). But here, no list is mentioned. So better:
✔ What

9) ______ is the purpose of this experiment?
→ Classic open-ended question. Purpose is not owned, not chosen from list.
✔ What

10) ______ ingredients do we need for this recipe?
→ Asking for a list or type of ingredients — open-ended. Not ownership, not selection from given set.
✔ What

Now let’s summarize the answers:
1) Which
2) Whose
3) What
4) Whose
5) Which
6) Which
7) Which
8) What
9) What
10) What

Double-check #2 and #4: both are about ownership → Whose ✔
#5: “Which book” is preferred over “What book” when referring to a specific borrowing event — common in ESL exercises like this.
Yes, consistent with grade 4 level expectations.

Final Answer:
1) Which
2) Whose
3) What
4) Whose
5) Which
6) Which
7) Which
8) What
9) What
10) What