句型转换（每题一分，共计5分）
It’s on the table.(就划线部分提问)
____  ____  it?
Tom has 3 baseballs.(改为否定句)
Tom ____  ____  3 baseballs.
I have some apples.(改为单数)
I have ____   ____ .
My volleyball is on the floor.（改为一般疑问句）
____   ____ volleyball on the floor?
These are green shirts . (对划线部分提问)
______  ______ are these shirts ?