句型转换（5%）小题1:These are my grandparents. (变一般疑问句)_______ these

句型转换（5%）
小题1:These are my grandparents. (变一般疑问句)
_______ these ______ grandparents?
小题2:Is this his picture? (作肯定回答)
_______, ______ is.
小题3:The tape player is in the room . (对划线部分提问)
_______ ________ the tape player?
小题4:She is a nice girl. (单数变复数)
_______ are nice ______.
小题5:They are erasers. (复数变单数)
______ is _____ eraser.