句型转换(共5小题，每小题2分，满分10分)
Are they your father and mother? (改为同义句)
Are they                 ______       __?
The picture of my family is on the wall . (对划线部分提问)
__   _____ ______   ___ the picture of your family ?
These are erasers. (改为单数句)
________ is   ________  eraser .
That is a box. (改为复数句)
are
This boy is my son. (改为一般疑问句)
this boy               son?