I want to be a volunteer some day. I feel _____ is my duty to help others.
| A．this | B．that | C．them | D．it |
________, Nathan gave back the enormous amount of money he found.
| A．To his sorrow | B．To his joy | C．To his surprise | D．To his credit |
After a day’s hard work, I went back home ________.
| A．exhausting | B．exhausted | C．being exhausted | D．having exhausted |
— Did you remember to give Jenny the money?
— Yes. ________ I saw her, I’m sure.
| A．As far as | B．In case | C．The instant | D．Now that |
Some people argue that both the government and the milk producers are ________ for the death of the babies.
| A．blamed | B．blaming | C．to be blamed | D．to blame |
When ________ what made him a popular person, he said it was his personality.
| A．asking | B．asked | C．being asked | D．ask |