It's my backpack.改为复数形式

It's my backpack.改为复数形式 把It's my backpack.改为否定句快 It's my backpack.对my backpack提问KUAIDIANA This is my pencil.（改为复数句） It's his backpack.（改为复数句） It's my backpack.改成一般疑问句 it is my backpack(改为否定句) it（ ）my backpack. it s under the sofa.and where s my backpack? it' s a backpack.(改为复数句） where's my backpack? Where's my backpack? It is my backpack _your backpack It's my telephone.(my telephone部分提问）2.This is a backetball.(a backetball部分提问）3.it is her backpack.(改为否定句） 对括号里的词提问 My pencil is( in my backpack)改为一般疑问句They're on the dresser改为复数句It's my baseball作否定回答Is it under the table? My aunt has a childwhere’s his black backpack?改为复数形式 That isn't my backpack改为复数 This is my backpack改为同义句 ( ) That isn't my backpack.It's____.A my brother B my brother' C my brother's 将下列句子改为负数形式（英语）Is this your backpack?It's a black cat.That's my brother.Where's your parent.还有一个改错Those(A)aren't(B)her(C)watchs(D)