Unit 2 This is my sister
Ⅰ．按要求写出相应的词
1．this（反义词）________ 2．these（反义词）________
3．it（复数形式）________ 4．that（复数形式）________
5．photo（复数形式）________ 6．picture（复数形式）________
7．cousin（复数形式）________ 8．friend（复数形式）________
9．son（对应词）________ 10．sister（对应词）________
