按要求完成下列句子，每空一词。 1. There are some racket

问题：

按要求完成下列句子，每空一词。

1. There are some rackets in the box. (改为否定句)

    There ______ ______ rackets in the box.

2. They have many CDs. (改为单数形式)

    He ______ ______ CD.

3. There is an apple in the cupboard. (改为一般疑问句)

    ______ ______ an apple in the cupboard?

4. These CDs are Mary's. (对画线部分提问)

    ______ ______ are these?

5.There are some oranges and eggs on the table. (改为单数形式)

    ______ ______ ______ orange and ______ egg on the table.