问题
选择题
Paper money was in___use in China when Marco Polo visited the country in___thirteenth century.
A.the;/
B.the; the
C./; the
D./;/
答案
答案:C
(be) in use 为习惯用语,意思是“在使用中”,不与冠词连用;thirteenth 为序数词,序数词前面通常使用定冠词。