WEEK EIGHT 第八周Unit 2 Why are you wearing a hat?基础闯关三、根据句意和首字母提示补全单词。1. —Why are you l_______ ? —Because am very happy.2. It's not e_______ to learn English. It's a little difficult.3. I'm h_______. Please give me some food.4. —Why are you w_______ your sweater?...