---Could you dance well when you were young?

---- ____________. I began to have dancing lessons at the age of 5.

A．Yes, I can

B．No, I can’t

C．No, I couldn’t

D．Yes, I could

卡钻是钻具陷在井内不能（）。

A.定向活动

B.自由活动

C.转动

D.起下