There was a riverwith a smalltown on eitherside of it. The townswerelinked by a bridge.
One day，a holeappeared in the bridge. Bothtownsagreedthat the holeshould be mended. However，disagreementcame up as to who shouldmend it. Eachtownthoughtthat it had a betterreason for the other to mend the hole. The town on the rightbanksaidthat it was at the end of the road，so the left-banktownshouldmend the hole. The town on the leftbank，on the otherhand，insistedthat all the trafficcame to the right-banktown，so it was in theirinterest to mend the bridge.
The quarrelwent on and on，and so did the hole. The more it went on，the more the hostilitybetween the two townsgrew.
One day a man fellinto the hole and broke his leg. Peoplefrombothtownsquestioned him closelyaboutwhether he was walkingfrom the rightbank to the left or from the leftbank to the right，in order to decidewhichtownshould be blamed for the accident. But he could not remember，since he got drunkthatnight..
Sometimelater，a car was crossing the bridge and broke an axle（轴）because of the hole. Neithertownpaid any attention to the accident，as the traveler was not goingfrom one to the other，but was merelypassingthrough. The angrytraveler got out of the car and asked why the hole was not mended.
On hearing the reason，he declared，“I'll buy thishole. Who‘s the owner？”
Bothtowns at oncedeclaredthattheyowned the hole.
“One or the other，whoeverowns the holemustprove it.”
“How shall we prove it？”askedbothsides.
“That's simple. Only the owner of the hole has the right to mend it. I‘ll buy the holefromwhoevermends the bridge.”
Peoplefrombothtownsrushed to do the job while the travelersmoked a cigar and his driverchanged the axle. Theymended the bridge in no time and asked for the money for the hole.
“Whathole？”The travelerlookedsurprised. “I can't see any hole. I‘ve beenlooking for a hole for severalyears now. I'm prepared to pay a goodprice for it，but there’s no holehere. Are you pulling my leg or what？”
He got into his car and drove off. 【題組】52. The man who had falleninto the holefailed to answer any questionsbecause he ______.
(A) had one of his legsbroken (B) was busychanging the axle (C) had drunk too muchwine (D) was afraid to blameanybody