It is common practice now ________ the web for resources and information for homework.

选择一项:
A. search
B. to search
C. searching
出自:人文英语2

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