单项选择题
Section A
Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
A．The speed limit was not clearly marked.
B．The limit was clearly marked as 40 M. P. H.
C．The speed limit is 30 M. P. It.
D．Ten miles per hour is the speed limit.