Conversation One When did the “big bang” occur
A: No one knows.
B: 12 billion years ago.
C: 20 billion years ago.
A: No one knows.
B: 12 billion years ago.
C: 20 billion years ago.
举一反三
- When was the man in New York A: About two years ago. B: About one year ago, C: About three years ago.
- When did life begin? A: 13.8 billion years ago. B: Between 13.8 and 10 billion years. C: Between 10 and 4.5 billion years. D: Between 4.5 and 3.5 billion years.
- Questions 5 to 7 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. When did the story happen A: One hundred years ago. B: Two hundred years ago. C: Three hundred’ years ago. D: Four hundred years ago.
- When did the Internet get started? A: Fifteen years ago B: Fifty years ago C: Seventy years ago D: Eighty years ago
- When did the woman get the necklace（） A: Five years ago. B: Four years ago. C: Six years ago. D: Not long ago.