forbid vt. 1: to proscribe from or as if from the position of one in authority : command against <the law forbids stores to sell liquor to minors><her mother forbids her to go>
There has to be a subject for "forbid" to act on and also the subject of "forbid" has the ability to perform an action. You cannot forbid the strike. You can only forbid the transportation union that can perform the action of striking. So I will go for B. But I don't know about why D is wrong if it is wrong.
以下是引用shaoshao2010在2007-12-9 2:44:00的发言:
The new contract forbids a strike by the transportation union.
(A) forbids a strike by the transportation union.
(B) forbids the transportation union from striking
(C) forbids that there be a strike by the transportation union
(D) will forbid the transportation union from striking
(E) will forbid that the transportation union strikes