137.In many places in China,____ bicycle is still _____ popular means of transportation.

A.a;the

B./;a

C.the;a

D.the;the

138.We went right round to the west coast by ____ sea instead of driving across___ continent.

A.the;the

B./;the

C.the;/

D./;/

137.答案是C，

考查冠词，第一空格为类指；第二空格a popular means of transportation泛指一种流行的交通

方式。

138.答案是B，

考查冠词，by sea 乘船，不加冠词；第二空格为特指。