单项选择题

Dumped waste might contaminate water supplies.

A. destroy
B. decrease
C. pollute
D. delay
<上一题 目录 下一题>
热门 试题

单项选择题
The board of the company has decided to widen its operation to include all aspects of the clothing business.
A. extend
B. enlarge
C. expand
D. amplify
单项选择题
Gambling is lawful in Nevada.
A. popular
B. booming
C. legal
D. profitable
相关试题