判断题Watching TV and traveling in a taxi can produce little CO2.
单项选择题Which of the following is NOT mentioned as a way to measure the time
单项选择题The third farmer came with and said to the other two. He ______.
单项选择题The underlined word it in Paragraph 3 refers to a poem by ______.
单项选择题The two farmers fought in words because ______.