根据对话内笛从方框中选择能填入空白处的最佳选项补全对话，其中有两顶多余。
A：Hi, Bob. You play table tennis very well.
B：I started playing at the age of six.
A：
B：Yes. It was invented by some English soldiers.
A：You're right. That's why the first World Table Tennis Championships were held(举办)in London.
B：Usually twice a week.
A：Why?
B：
A：I hope you can win the competition. Good luck to you!
B：Thank you.

A. How often do you play it? B. When did you start playing it? C. Do you know who invented it? D. But I practise it every day these days. E. Who taught you to play table tennis? F. Are you interested in playing table tennis? G. I will enter a table tennis competition in our city next month.