Fifty miles __________ a long distance.

Complete Sentence: Fifty miles is a long distance.

এখানে, "Expressions of time and distance" কে "single entities" হিসেবে ধরা হয়।
- তাহলে, তাদের পরে Plural Verb বসেনা। যেমন: twenty miles, six days, two minutes, four meters etc.

Example Sentence;
1. Ten minutes is not a lengthy wait for a table at this popular restaurant.
2. Six months is not an extended period for completing this project.