-  Excuse me, would you please speak a little more_______?

-Sorry, I thought you could follow me.

A．sadly

B．quickly

C．slowly

D．Politely

贷款所购车辆在某行抵押的，某行应收押（）等材料。

A.《机动车登记证书》

B.购车发票

C.行驶证

D.保险单副本