单项选择题

Marco Polo was probably the first westerner () about China, a land unknown to Europeans.

A. to write
B. written
C. wrote
D. writing

<上一题 目录 下一题>
热门 试题

单项选择题
One reason for the social isolation of Americans is ().

A. frequent relocation
B. frequent traveling
C. living alone
D. working flexible hours
单项选择题
The United Nations declared 2011 to 2012 the Year of the Bat, because bats ().

A. are beneficial animals
B. are close to extinction
C. have been misunderstood
D. are under serious threat
相关试题