. ---Mary has a very low opinion of George.

---It can' t be any worse than ____ of her.

A．he

B．his

C．him

D．he does

按货物是否已装船区分，提单可分为（）。

A．已装船提单和收货待运提单

B．清洁提单和不清洁提单

C．直达提单和海上联运提单

D．倒签提单和预借提单