GWD上答案不一的一道题，大家来讨论一下！

cll0503

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

 

1. is expected to make an offer to buy First Interstate Bank until a merger agreement is signed that includes a provision for penalties if the deal were

2. is expected to make an offer for buying First Interstate Bank until they sign a merger agreement including a provision for penalties if the deal was
3. is expected to make an offer to buy First Interstate Bank until a merger agreement be signed by them with a provision for penalties if the deal were

4. are expected to make an offer for buying First Interstate Bank until it signs a merger agreement with a provision for penalties included if the deal was
5. are expected to be making an offer to buy First Interstate Bank until they sign a merger agreement including a provision for penalties if the deal were

这道题在GWD2和6都出现了，完全一样的，我第一次选了A，结果答案是C。我还自我解释因为until后要加虚拟语气，省略情态动词，然后with比that includes更简洁等。结果第二次做我选了C,认为万无一失，结果答案是A。真够晕的，各位大家讨论下，到底是A还是C？

AlienX

看prep

enrique1313

A

 C中的by them with a provision 使句子不简洁！them也无指代