–The weather is getting worse.--Yes, and it shows us that we should try to make the _____better.
· treatment
· development
· environment
· government
出自:华北水利水电大学英语

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块