She did her best to __________ more self-confident than she felt.

A. appeared

B. appearing

C. appear

D. disappear
出自:中北大学-大学英语(二)

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