单项选择题

The drinking water has became (contaminated) with lead.

A．polluted
B．treated
C．tested
D．corrupted
<上一题 目录 下一题>
热门 试题

单项选择题
Respect for life is a (cardinal) principle of the law.
A．moral
B．regular
C．fundamental
D．hard
单项选择题
Three world-class tennis players came to (content) for this title.
A．argue
B．claim
C．wish
D．compete
相关试题