hisborthersis a worker（改为一般疑问句）
these are your brothers(改为否定句）
she is my aunt （改为一般疑问句）
his keys are on the sofa (改为一般疑问句并作简短肯定.否定回答）
her backpack are (on the bed)(括号提问）
the baseballs are under sofa(同上）
Dose his brothers is a worker?These are not your brothers.Is she my aunt?Are his keys on the sofa?No,they aren't.Where are her backpack.Where are the baseballs.
