V. Fill in each blank with a suitable preposition. (5 pts)
1. I put salt in my coffee ___________ mistake.
2. Have you got money ___________ you?
3. I was __________ to go out when the telephone rang.
4. May I introduce you __________ Miss Brown?
5. He was ill __________ a week and _________ that week his wife never left his side.
6. It has rained __________ two o’clock.
7. I am extremely grateful __________ all the teachers __________ their help.
8. You’d better not drink that milk, Linh. It’s gone __________.