完成句子（每空1分，共8 分）

小题1:This is his mother.  (改为一般疑问句)

_____  ______ his mother?

小题2: That boy is Bob. (对划线部分提问)

_______  ______  that boy?

小题3:This is her pen.  (改为同义句)

This ______ is _______.

小题4:这是一张我的全家福。 (完成译句)

This is a__________ ________ my family.

牵引电动机轴承内圈一般采用静配合装在转轴上，加热温度不超过（）℃。