In that south American country bicycle is not popular means of transportation．A. the；aB.

问题补充：

In that south American country, bicycle is not popular means of transportation．

A. the；a

B. a；不填

C. a：the

D. the；the

答案：

(答案→)A. the；a

B. a；不填

C. a：the

D. the；the

解析：考查冠词，第一空特指一类事物，所以用the，第二空泛指一种交通方式，所以用a。