听下面一段独白，回答以下小题。
1. Where are the Yungang Grottoes located?

A．Sichuan province

B．Hunan province

C．Near Datong

2. What is unique about the Yungang Grottoes according to the speech?

A．Natural hot springs

B．Ancient Buddhist statues

C．Underground rivers

3. What is the suggested age of the Yungang Grottoes?

A．Less than 500 years

B．Over 1,500 years

C．Exactly 1,000 years

4. What does the speaker emphasize about the sculptures in the Yungang Grottoes?

A．Their small size

B．Their simplicity

C．Their lifelike expressions

5. What emotion does the speaker suggest visitors might feel when exploring the Yungang Grottoes?

A．Awe

B．Boredom

C．Disinterest

6. What aspect of ancient China do the Yungang Grottoes represent in the speech?

A．Modern technology

B．Rich cultural heritage

C．Recent innovations

7. Describe the primary characteristics of the Yungang Grottoes mentioned in the speech.
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8. How does the age of the Yungang Grottoes contribute to their significance?
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9. What historical narrative does the Yungang Grottoes tell according to the speaker?
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10. Explain the suggested emotional experience of visitors when exploring the Yungang Grottoes.
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