求助,855-Section10-No.18

18.   Judicial rules in many states require that the identities of all prosecution witnesses are made known to defendants so they can attempt to rebut the testimony, but the Constitution explicitly requires only that the defendant have the opportunity to confront an accuser in court.

(A) that the identities of all prosecution witnesses are made known to defendants so they can attempt to rebut

(B) that the identities of all prosecution witnesses be made known to defendants so that they can attempt to rebut

(C) that the defendants should know the identities of all prosecution witnesses so they can attempt a rebuttal of

(D) the identities of all prosecution witnesses should be made known to defendants so they can attempt rebutting

(E) making known to defendants the identities of all prosecution witnesses so that they can attempt to rebut

Answer is B, but why? Many thanks....

A, are 错. 应该用虚拟be

C. they指代不清

D和E需要that.

very good! Thanks a lot!