50 miles southwest of the country ________ the famous beautiful mountain.

The river is 50 miles in ____(long), and it is of great importance to the local people.

A car travels at a rate of 50 miles per hour.How long will it take to travel 300 miles（） A: 250hours B: 6hours C: 1/6hours D: 15000hours

The train travels at the rate of 50 miles an hour. 那火车以每小时50英里的速度运行。

22. 50miles southwest of the country ________ the famous beautiful mountain. A) laying B) lie C) lies D)lays

A．At least 14 miles an hour.B．At least 40 miles an hour.C．At most 40 miles an hour.D．A A: At least 14 miles an hour. B: At least 40 miles an hour. C: At most 40 miles an hour. D: At most 14 miles an hour.

How long is the Great Wall of China? () A: 500 miles B: 1,500 miles C: 5,000 miles

Not too many years ago, it was an ______ experience to travel 25 or 50 miles from home. A: excited B: exciting C: excitement D: excitingly

It reached a speed of forty miles an hour. It ________ forty miles an hour.

The time it took car P to travel 600 miles was 2 hours less than the time it took car R to travel the same distance. If car P’s average speed was 10 miles per hour greater than that of car R, what was car R’s average speed, in miles per hour ？（） A: 40 B: 50 C: 60 D: 70 E: 80