Which of the following sentences illustrates correct verb and verb tense usage?

Which of the following sentences illustrates correct verb and verb tense usage?

Possible several answers.

A. Did Annabel knowingly lie on the witness stand?
B. We think the judge will have noticed something strange in her behavior.
C. The lawyers had decided to keep her testimony a secret.
D. Somehow, all of the newspapers gotten hold of the story.

Answer - A, B