题目内容：

句型转换。（8分）

1.These are some orange pencil boxes. (改为单数) ___________ is an orange pencil _________.

2.That is my friend.（改为复数） ___________ __________ my friends.

3.My pencil is in the desk.（划线提问）___________ your pencil?

4.These keys are on the table.（改成一般疑问句）__________  __________ keys on the table?

5.I know his last name. (改为否定句)   I __________ know his last name. [