They promised to give us such information that would help us in our research.这句话哪里有错误,
问题描述：
They promised to give us such information that would help us in our research.
这句话哪里有错误,
答
主语从句。that代指前面they promised to give us such information，作后面句子would help us in our research的主语。
他们承诺给我们的信息对我们的研究很有帮助。
答
that 改成 which吧
答
that--as
such.as固定用法
答
他答应给我们有助于我们研究的资料