题目内容

SECTION A CONVERSATIONS In Sections A, B and C you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct response for each question on your ANSWER SHEET.Questions 1 to 4 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.Now listen to the conversation. When was the Tunnel opened to the public

A. 1990.
B. 1991.
C. 1992.
D. 1993.

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