one SC

winners

1. Not one of the potential investors is expected to make an offer to buy First Interstate Bank until a merger agreement be signed by them with a provision for penalties of the deal were not to be concluded.

为什么until 后面的从句中用be signed, 动词在哪里？

lakegirl

原题呢？楼主得从整体上分析句子，不要取出部分进行分析