I. 

1. crisps

2. ski

3. speed

4. stars

5. steak

6. spider

7. desk

8. costume

9. festival

10. basket

11. stilt house

12. skirt

13. sport

14. sticky rice

15. west

16. skating

II.

/sk/: kiosk, skip, ask, skill, risky, sky, schook, scare.

/sp/: spicy, especial, aspect, correspond, sparse, speech, speciality.

/st/: vest, tourist, stilt, toaster, stairs, costume.

B. I.

1-

2-d. costume - clothes that are typical of a particular place. 

3-b. terraced field - a field that is on the side of a hill and fevided into layers that look like steps.

4-i. stilt house - a house raised on piles over the surface of the soil. 

5-a. waterwheel - a wheeel for raising water to a higher level.

6-d. folk dance - a traditional dance of a particular area or country.

7-f. communal house - the largest atilt house in the village where village ceremonies and festival take place. 

8-e. temple - a building used for the worship of a god or gods. 

9-h. gong - a metal disc that makes a loud deep sound when it is hit with a stick.

10-c. open-air market - local trading site for highlanders to exchange food or hand made products.

 II. 

1. stilt house

2. speciality

3. diverse

4. unique

5. folk dance

6. costume

7. heritage site

8. ornaments

9. terraced fields

10. ethnic minorities

III.

1. d. Exactly

2. a. How nice!

3. c. Wow, that's surprising 

4. b. That's awesome

5. Oh, I see.

6. c. Yes, I'd like that.

7. a. Good idea

8. b. How interesting!

IV. 

1. What

2. How many

3. What

4. What

5. Where

6. How often

7. Who

8. How far

9. What

10. When

V.

1. Who is the girl with a shawl on her head?

2. How many main festival do The Khmer have in a year?