Rolls-Royces is rankedfourth in the list of best carsThe Browns already have two and now

问题补充：

Rolls-Royces is rankedfourth in the list of best cars．The Browns already have two and now they are buyingthird．

A. the ; the

B. 不填; a

C. the ; a

D. 不填; the

答案：

A. the ; the

(答案→)B. 不填; a

C. the ; a

D. 不填; the

解析：考查冠词。第一空rank后面直接序数词，表明排名第几；第二空在序数词前面加a,表示再一，又一。句意：．Rolls-Royces在最好的汽车中排名第四，布朗家已经有了两辆了，现在他们正要又买一辆。故B正确。