Great changes have taken place in that factory ,It is no longer____it was ten years ago,____it was so poorly equipped1.what when2.that which3.what which 4.which that
问题描述：
Great changes have taken place in that factory ,It is no longer____it was ten years ago,
____it was so poorly equipped
1.what when
2.that which
3.what which
4.which that
答
选2。
that就是the factory。而which it was ten years ago是定语从句，which代替先行词that，在从句中作was的表语。
答
选1