My cousin is studying English now.如何改为否定句

my___son is my cousin My cousin is (17)提问 She is my cousin.对my cousin提问 He is my cousin 对my cousin提问 my cousin's grandmother is my ____ tom is my cousin改同意句 This is my cousin.改为复数形式. this is my cousin 改复数句子 This is my cousin.(改为复数句) she is my cousin 改为否定句 The girl ____ red is my cousin. Jill is my _________(brother) cousin. My cousin is a postman变复数 Anna is not my sister.___my cousin. My cousin's daughter is my____. My cousin Andy is polite and helpful He is my cousin.（复数） my cousin is catching it 改为一般过去时