He unbuttoned his shirt to _______ a big scar on his chest.

A.
adapt

B.
react

C.
review

D.
reveal
出自:大学英语252

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