We consider it necessary ______ Tom should improve his behavior.

选择一项:
A. which
B. that
C. what
出自:人文英语3

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