When ________ for his views about his teaching job, Philip said he found it very interesting and

rewarding.[ ]

A. asking  

B. asked  

C. having asked  

D. to be asked

目前我国对保税区内以及驻有海关监管人员的保税工厂开展加工贸易的进口料件，不实行银行保证金台账制度。( )