The chairman requested that ______.
选项:
A:the members should have studied the problem more carefully
B:the problem were more carefully studied
C:the problem could be studied with more care
D:the members study the problem more carefully
出自:河南科技大学大学英语3(专升本)

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