I can find my book改为否定句咋改呀

I can find my book改为否定句咋改呀 I can't find my English book. can found 还是can findI can found my book. 还是I can find my book I can't find my book 改复数句 I can't find my book.句子结构 I can't find my book.(同义句) Excuse me,Nancy.I can’t find my book.( )Excuse me,Nancy.I can’t find my book.( )worry I can tell you where i can find your lost book改为简单句怎么改? I can't find my keys.(改为同义句） I can find my eraser.改为否定句是什么? My sister can't__(find)her book I()find my book.where is it.(can am can't am not) 将这个句子改为简单句I can tell you where I can find your last book i can not find my math book c( ) your backpack again I can' t find my I can find out my key my can find i(.) I don't know _____A.where can I find my English books B.where I can find my English book选哪个?答案上是B,为什么?