PREP1-217 看不懂的语法现象，请高人指点

217.
   (30418-!-item-!-188;#058&005391)     (T-3-Q17. ��ɽ-7-14)

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.

A. 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

B. 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

C. 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

D. 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

E. 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

最后基本能够锁定在AC之间，但是不明白A怎么被排除的？ 为什么C里用了原型be？

网上的解释是expect  to 后边连接原型，以便平行。

原文：

"Not one of the potential investors" is singular, so "is" must be used rather than "are". So D & E are out.

When using "if" in this case, were must be used always (for example "if I were....", "If you were...", "If he were... , "If it were"). So B is out.

Finally, in "is expected" is subjunctive, so it hould use the verb infinitive. In this case should be "is expected to make .... until .... be ....". (make and be parallel). So C is the choice. (A uses "make" and "is").

但仍旧怀疑。

not one=none 可以查Longman有的

1.主谓一致 得到A B C

2.根据逻辑意思 agreement是两方来签订的 这个句子的意思也是investors与Bank来签的 那么B肯定不对了 因为they指代investors 同样C中的they的指代

3.C就像楼主说的be毫无道理

选A

我会选择C

明显的a provision是一个条件，所以应该用with.

不好意思，看错了，答案就是A

A. 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

A中的THAT是修饰谁的？还是跟哪个搭配啊？