单项选择题

Today we take it for 1 that the mail will be delivered (送) daily at our door. But many years ago it might have been 2 under a rock. In the early days of the mail no one could be sure where—or when—the letters would 3 .
At the southern tip (顶端) of Africa there 4 once a post office under a rock. In the old days ships which went from England to India would pass the Cape of Good Hope (好望角). The journey was stormy and dangerous. It 5 six long months. Sailors often wished to send 6 home, but they seldom met ships which went back to England. 7 at the cape the sailors would go ashore. They 8 for a certain large stone. On the 9 sailors could see the following words "Look here under the stone for letters." They would leave their letters there, knowing that the next homeward-bound (开往家乡的) ship would stop and 10 them up.

A.get to
B.arrive at
C.arrive