A mistake ______ have been made on our bill. We didn’t order any fish today.
| A．should | B．would | C．could | D．must |
Theboss_________all the employees to work withgreat care.
| A．asked | B．said | C．agreed | D．spoke |
Theteacher asked us _________so much noise.
| A．don't make | B．not make | C．not making | D．not to make |
"Don, t tell the news to him，"she said. —She advised me_________.
| A．not tell the news to him |
| B．to not tell the news to him |
| C．not to tell the news to him |
| D．not telling the news to him |
She said，“ Please be careful. Don't knock off the glass of water. ”—She asked me _________knockoff the glass of water.
| A．please be careful not to |
| B．to be careful not to |
| C．to be careful to not |
| D．not to be careful to |
Knowing her son was out of danger, the mother sighed _________ relief.
| A．in | B．over | C．about | D．on |