问题
选择题
Never before in China _______ for the unemployed.
A．has done so much
B．has been done so much
C．so much has been done
D．has so much been done
答案
D
本句是否定副词never开头，用部分倒装。句意为“中国以前从未为失业人员做过这么多”。
搜题请搜索小程序“爱下问搜题”