-I can’t find my ID card. -There is ID card in the lost and found case. A the B an C a D

问题补充：

-I can’t find my ID card.

-There is ID card in the lost and found case.

A the B an C a D 不填

答案：

解析：：当名词前有冠词时，根据该名词ID card的首个音标为元音音标，故选用冠词an，故选B