根据句意及首字母提示完成单词。

1.—Where's my baseball?

   —It's on the f___________, under the table.

2. Please put the desk b___________ the sofa and the dresser.

3.—Where is my c___________?

   —It's under the table.

4.—W___________ is my backpack?

   —It's on the sofa.

5.—Where are my books?

   —I don't k___________.

在Excel97中，自动填充是在所有选中的单元格区域内，依据初始值填入，对初始值的扩充序列。