III. Read the passage and choose the best answer.
When Nick and Jane got their phone bill, they knew something was wrong. They couldn't understand why the new bill was over fifty dollars more than the old one. Then Nick saw the long-distance charges. There were ten calls listed to the town of Rosemont, several hundred miles away.
"But we don't know anybody in Rosemont," Jane protested. "Where is Rosemont, anyway? Besides, no one would have such a ridiculous phone number as 123-456-7890." Suddenly, they thought of their twin sons, who were just learning how to count. They must have been playing with pushbuttons on the dial. This turned out to be the right solution to the mystery of their phone bill.
66. Nick and Jane are
A. friends. B. twin sons. C. telephonists. D. a married couple.
67. What was wrong with their new phone bill?
A. It couldn't be understood. B. It contained ten calls for an unknown town.
C. It was fifty dollars. D. It was several hundred miles away.
68. The word ridiculous in the passage could be best replaced by
A. funny. B. unreasonable.C. foolish. D. crazy.
69. Which of the following sentences is NOT true?
A. They Couldn't understood why their phone bill cost much.
B. There were many long-distance calls in their phone bill.
C. They had to pay fifty dollars for the bill.
D. Their twin sons learned how to Count on the dial when they Were out.
70. This in the passage refers to
A. the phone number 123-456-7890.
B. Nick and Jane's thought.
C. the long-distance charge.
D. their sons' playing with Pushbuttons on the dia1.