某题。。。请帮忙~~~

pandaeyes

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

the deal为什么是复数啊？选e.

Zeldaw

选A的这题

alicfine

虚拟语气，be一律为were.

ktj

是选A吧????

not one of+复数谓语用is吧??

pandaeyes

啊啊， gwd上答案是c.......until后面也要虚拟？？？