【正文】
b 2 a b one quarter three quarters whale tiger 5 kilometres 10 kilometres 1 kilometre = 1,000 metres Listening exercise Sea facts When you listen for facts, you need to catch the important words. Names, times and numbers are usually important. They can help you find the correct answers to the questions. 根據(jù)中文意思,完成下列句子。 1. 人