| 1 | I was amazed at the extent of his knowledge. | |
| 2 | He impressed his audience by the profundity of his knowledge. | |
| 3 | London taxi drivers were voted both friendliest and most knowledgeable. | |
| 4 | Keep in mind that you may not be the most knowledgeable person in the room. | |
| 5 | Beyond this, the company also has plenty of knowledgable representatives on staff to help customers. |