1. Where (Where)
- Where are the T-shirts? - They are on the table.
Where are the T-shirts? - They are on the table.
- Where are you from? - I'm from Vietnam.
Where are you from? - I'm from Vietnam.
- Where are we going? - We are heading to the market.
Where are we going? - We're going to the market.
- Where are you? - I'm at home.
Where are you? - I'm at home.
- Where can I find hospitals? - You can check the map.
Where can I find hospitals? - You can check the map.

2. Which (Which)
- Which is better, spaghetti or chicken salad? - I prefer spaghetti.
Which is better, spaghetti or chicken salad? - I prefer spaghetti.
- Which one is the best? - I would go for pizza.
Which one is the best? - I'd choose pizza.
- Which one do you prefer? - A sandwich.
Which one do you prefer? - A sandwich.
- Which road should I follow? - Take the AB Road.
Which road should I follow? - Take AB Road.
- Which school does he attend? - He goes to AC College.
Which school does he attend? - He attends AC College.

3. What (What)
- What are you doing? - I'm reading a book.
What are you doing? - I'm reading a book.
- What are you going to eat? - I'm going to have a sandwich.
What are you going to eat? - I'm having a sandwich.
- What are you thinking? - I'm thinking about my mom.
What are you thinking? - I'm thinking about my mom.
- What are your hobbies? - I enjoy reading and writing.
What are your hobbies? - I love reading and writing.
- What can I do for you? - I'd like to reserve a table.
What can I do for you? - I'd like to make a reservation.

4. How (How, in what way)
- How are you? - I'm doing well.
How are you? - I'm fine.
- How are you paying? - With cash.
How are you paying? - By cash.
- How do I get there? - Take the bus.
How do I get there? - By bus.
- How do I reach the American Embassy? - Turn left at Main street and go straight until the end of the road.
How do I reach the American Embassy? - Turn left at Main Street and continue straight until you reach the end of the road.
- How do I use this? - Just open it.
How do I use this? - Just open it.

5. Why (Why)
- Why are you laughing? - Because it's so funny.
Why are you laughing? - Because it's so funny.
- Why aren't you going? - Because I'm busy.
Why aren't you going? - Because I'm busy.
- Why did you do that? - Sorry, that was my fault.
Why did you do that? - Sorry, that was my mistake.
- Why did you say that? - Because I thought it was wrong.
Why did you say that? - Because I thought it was incorrect.

6. Who (Who)
- Who are they? - They are my parents.
Who are they? - They are my parents.
- Who are you looking for? - I’m looking for my wife.
Who are you looking for? - I'm searching for my wife.
- Who are you? - I am a teacher.
- Who is this? - It’s Lan from AB company.
Who is this? - It’s Lan from AB company.
- Who is that? - That’s my sister.
Who is that? - That’s my sister.
- Who sent this letter? - I did.
Who sent this letter? - I sent it.
- Who taught you that? - My mom taught me that.
Who taught you that? - My mom taught me that.

7. When (When, at what time)
- When are you leaving? - As soon as possible.
When are you leaving? - As soon as possible.
- When did this happen? - Since last Sunday.
When did this happen? - Since last Sunday.
- When are you going to pick up your friend? - 8 p.m.
When are you going to pick up your friend? - 8 p.m.
- When do we arrive? - Maybe 9 a.m., but I'm not sure.
When do we arrive? - Maybe 9 a.m., but I'm not certain.

