In order to show his boss what a careful worker he was, he took( )trouble over the figures.

A.extensive
B.spare
C.extra
D.supreme
出自:吉林大学大学英语

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