The river is 50 miles in ____(long), and it is of great importance to the local people.
                    举一反三
- The river is 300 miles in 〔long〕_______.
 - 3. The local people live miles and miles away from each other.
 - How long is the Great Wall of China? () A: 500 miles B: 1,500 miles C: 5,000 miles
 - The Chinese people _______ a great people.
 - Chinese people attach great importance on the nutritional collocation.
 
