【单选题】

The lion once (36) that he was (37) unto death and summoned the animals to come and (38) his last will and testament. So the goat came to the lion’s (39) , and stopped (40) listening for a long time. Then a sheep went in, and (41) she came out a calf came up to receive the (42) of the lord of the beasts. (43) soon the lion seemed to (44) , and came to the mouth of his cave, and saw the fox, (45) had been waiting outside for (46) "Why do you not come to pay your (47) to me " said the lion (48) the fox.

"I (49) your Majesty’s pardon," said the fox, "but I noticed the (50) of the animals that have already come to you; and while I see many hoof-marks going in, I see (51) coming out. (52) the animals that have entered your cave come out again I (53) remain in the open air. "
It is (54) to get into the enemy’s (55) than out again.
A、listen
B、hear
C、hear of
D、learn