f you don't keep quiet I shall shoot you,he to her in a calm voice.

• A. He warned her to shoot if she didn't keep quiet calmly.
• B. He said calmly that I shall shoot you if you don't be quiet.
• C. He warned her calmly that he would shoot her if she didn't keep quiet.
• D. Calmly he warned her that be quiet or else he will have to shoother.