Is this your backpack?变复数要怎么变啊!
Is this your backpack?变复数要怎么变啊!
is this that 变复数怎么变
This is a[backpack]变否定句、对画框部分提问、变复数句
is this your ball?(变复数)
where is my backpack 变复数
改错here is nice backpack This is my book(变复数句)
this is a piano怎么变复数
HERE IS YOUR DRESS变复数句怎么变
Is this your pencil?Yes ,it is.变复数
is怎么变复数
this is your pencil sharpener.变复数________your___________
This is your case.变复数……