18. Now that we have approval we may _______ the scheme as previously agreed.
A. throw B. execute C. popular D. stress
出自:东华大学大学英语4

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