单项选择题
() the most versatile of the common metals, lead was widely valued and used in ancient times.
A. It is
B. Therefore
C. Among
D. Because
点击查看答案&解析
<上一题
目录
下一题>
热门
试题
单项选择题
Mr. Wang and his son, both looking very happy, () taking a walk in the park.
A. are
B. is
C. has
D. have
点击查看答案&解析
相关试题
35()
34()
33()
32()
31()