题目内容：

A businessman sent his son to learn the secret of happiness from the wisest man. The boy walked through the desert for forty days _____ he reached a beautiful castle at the top of a mountain where the Sage (圣人) lived.

When he _____ a room, he saw lots of strange views: businessmen coming and going, a small music group _____ sweet music, and all kinds of delicious dishes on a large table.

The Sage _____ everyone. The young man had to wait for two hours until it was his _____.

_____ enough patience, the Sage listened to the boy, but he was too _____ to explain to him the secret of happiness. While he suggested that the boy walk _____ his palace and come back in two hours.

“However,” he added, handing the boy a teaspoon with two drops of oil in it, “while you walk, ______ this spoon and don’t let the oil spill.”

The boy began to walk around the palace, ______ keeping his eyes fixed on the spoon. At last he returned to the Sage.

“So,” asked the Sage, “did you notice anything amazing in my palace?” Embarrassed(尴尬的), the boy said that he had seen ________. He was only concentrating on the _______.

“OK. Now go back and see the wonders of my world,” said the Sage. Now more ________, the boy took the spoon and walked again through the palace. Returning to the Sage, he exactly reported ______ he had seen.

“But where is the oil?” asked the Sage. Looking down at the spoon, the boy realized that he had spilled it all.

“Well, the secret of happiness lies in looking at all the wonders of the world and never ______ the two drops of oil in the spoon,” the Sage said with a smile. They were both important. Then the boy realized what happiness was.

1.A. until    B. when    C. after    D. since

2.A. saw    B. left    C. entered    D. lived

3.A. hearing    B. writing    C. enjoying    D. playing

4.A. looked for    B. talked with    C. heard from    D. knew about

5.A. time    B. way    C. turn    D. duty

6.A. To    B. For    C. In    D. With

7.A. busy    B. angry    C. happy    D. funny

8.A. into    B. around    C. across    D. out of

9.A. catch    B. bring    C. get    D. take

10.A. never    B. nearly    C. always    D. sometimes

11.A. something    B. anything    C. nothing    D. everything

12.A. spoon    B. man    C. castle    D. palace

13.A. carefully    B. freely    C. luckily    D. difficultly

14.A. that    B. which    C. who    D. what

15.A. forgetting    B. minding    C. realizing    D. considering