Choose the correct answer

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**Explore Sơn Đoòng Cave!**
Discover Sơn Đoòng Cave, the world’s largest cave! Located (1) __________ Vietnam’s Phong Nha-Kẻ Bàng National Park, this cave is great for adventure seekers.
**What You'll See:**
- Amazing rock formations
- A jungle and river inside (2) __________ cave
- Cool animals like monkeys and bats
If you love (3) __________, Sơn Đoòng Cave is a must-see!
**Plan your visit today and see this natural wonder!**

**Question 1:** A. at
B. in
C. on
D. of

**Question 2:** A. a
B. an
C. the
D. no article

**Question 3:** A. adventure
B. adventurous
C. adventurously
D. adventurer