Unit 2 This is my sister. 水平测试一、按要求写出相应的词.（每空一分）1this（反义词）_ 2these（反义词）_ 3those（单数形式）_ 4that（复数形式）_ 5photo（复数形式）_ 6picture（复数形式）_ 7watch（复数形式）_ 8friend（复数形式）_ 9boy（复数形式）_ 10family（复数形式）_ 二、根据句意、首字母提示或者用括号内所给单词的正确形式填空。（每空一分）1. Is _ (these) your eraser? 2. _ (that) are my brothers. 3. _ (Her) isnt Susan. Her name is Mary. 4. Lin Hai and Guo Peng are my _
