Some people have become concerned _____ another kind of pollution.A、aboutB、withC、forD、by

Some people have become concerned _____ another kind of pollution.

A、about

B、with

C、for

D、by

您可能感兴趣的试题

The quality of many people’s lives has become worse in some ____ because of technological progress.

答案解析
According to the passage people who have experienced ups and downs may become______.A．nerv

答案解析
Some species of animals have become extinct because they could not ______ to the environme

答案解析
Ensuring an adequate water supply have been a concern ever since people began to live in t

答案解析
Mobile phone has become a problem for middle schools. Some middle schools in Australia have banned s

答案解析
Some people tend to have better memories than the

答案解析
Increasingly over the past ten years people—especially young people—have become aware of

答案解析