— Were you on time for the meeting?   

— If they ______ me earlier, I would have.  [    ]

A. told    

B. would tell  

C. had told      

D. would have told

输入的动植物、动植物产品和其他检疫物运达口岸时，检疫人员可以到运输工具上和货场实施现场检疫，核对货、证是否相符，并可以按照规定采取样品。 ( )