句型转换。根据要求完成下列句子。一空一词。

1. Your key is on the floor.（对划线部分提问）

                  your key?

2. You can call Mary. Her telephone number is 65324466.（变同义句）

You can          Mary         65324466.

3. Tom is a good student.（变一般疑问句）

                   a good student?

4. Those are orange chairs. （变为单数形式）

         is          orange chair.

5. Are these your video tapes?（作肯定回答）

Yes,                   .

6. Are these your keys?（变陈述句）

                     my keys.

7. That is a pencil sharpener. （变为复数形式）

         are pencil          .

8. The baseballs are on the desk. （变否定句）

The baseballs          on the desk.