—Peter has changed a lot, hasn’t he?

—Yes. He used to        the guitar, but now he is more      in playing soccer.

A．plays; interested

B．play; interested

C．play; interesting

D．playing; interest

某车上装用的轮胎，其中一条旧胎现余花纹的深度为4mm，此规格的轮胎行驶里程定额为60000km，新胎的花纹深度是16mm，求此旧胎的储备里程。