1. Jack has a right to know. He ought be told the news immediately. If you don’t do it, I will.
2. I have no patience with gossips. What I told Bill was a secret. He shouldn’t have repeated it to you.
3. Use this brown paper and tape. A package has to be wrapped carefully before it is mailed. Otherwise, the post office won’t send it.
4. I don’t know why Jessica wasn’t at the meeting. She must have forgotten about it.
5. The ancient ruin may have been discovered as early as 1792. The historical record is difficult to interpret.
7. This burnt out light bulb should have been replaced days ago. Could you do it for me?
10.You’d better not drink that river water. It could scrub.