从下面方框中选出与下列各句中划线部分意思相同或相近，并能替换划线部分的选项。

A. lots of     B. Thanks for       C. family name   D. grandparents

—Who are they? —They are Tony's grandfather and grandma．
I like playing ping-pong, and I have a lot of ping-pong balls．
—What’s her last name? —Miller．
Thank you for your books． I like them very much．