高考时态语态填空题1. Much of the carbon in the earth ____________ (come) from things that once lived. 2. In the past two decades, research _______________ (expand) our knowledge about sleep and dream.3. Some p
Unit 1 Where did you go on vacation?Section ALanguage Goal:Talk about past events.1a Match the activities with the pictures [a g].1. stayed at home __f__ &nb