According to the newsman, as a result of______ heavy fog, ______ expressway has been closed up until further notice.

A.a; the

B.the; 不填

C.不填;an

D.the; the

答案及解析： D

解析：

考查冠词。题中两个the均为特指，分别特指大雾和高速公路，故选D。