John received an invitation to dinner, and with his work __________, he gladly accepted it.

A．finished

B．finishing

C．having finished

D．was finished

关于定程租船的说法，错误的是()。

A.船舶的经营管理由船方负责 

B.规定一定的航线和装运的货物种类、名称、数量以及装卸港口 

C.船方除对船舶航行、驾驶、管理负责外，还应对货物运输负责 

D.不规定装卸期限或装卸率，不计算滞期费、速遣费