对括号里的词提问 My pencil is( in my backpack)

问题描述:

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?

Where is your pencil
Are they on the dresser?
They are my baseballs.
No ,it isn't .