专业八级改错练习 第73期

Today we take for granted that the mail will be delivered __1__
daily at our door. But many years ago it might have been
placed in a tree trunk and underneath a rock. In the early __2__
days of the mail no one could be sure about where or when it will arrive. __3__
At the southern tip of Africa there was once a post office
under a rock. At the old days the route from England to __4__
India was around the Cape of Good Hope. The journey was
stormy and danger. It took six long months. Sailors often __5__
wished to send mail home, but they seldom met ships bound
back to England. So at the cape the sailors would go on
ashore. They headed for a certain large stone. On the __6__
stone scratched the words “Look here under for letters.” __7__
They would leave their letters there, knowing that the
next homeward ship would stop and pick it up. __8__
There was another post office like this at the southern
tip of South America. During the golden rush days, boats __9__
sailed around Cape Horn to California. At Cape Horn was
a keg(小桶) nailed to a post. Boats coming from the east
coast would send some sailors to this post office. They
picked up any letters in the keg. At the same time they
mailed letters home that boats sail east could pick up. __10__