The manager was worried about the press conference his assistant ______ in his place but luckily, everything was going on smoothly.

A．gave

B．gives

C．was giving

D．had given

同业借款的开展对象，原则上为经总行授权的（），必要时需要对方提供相应担保。

A．信用社

B．保险公司

C．租赁公司

D．外资银行