.Despite UNICEF’s efforts, dirty water ______ for disease spreading in southern Iraq at the very moment.
| A．is to be blamed | B．is being blamed | C．has been blamed | D．was blamed |
The conference aims to develop business and let people think about ______ they can have a positive influence on the Earth.
| A．why | B．that |
| C．what | D．how |
It makes his life quite different ______ he has received higher education abroad.
| A．that | B．which |
| C．what | D．how |
With two more professional hands ______ you later on, scarcely will you have any trouble ______ your work ahead of time.
| A．helping; fulfilling | B．help; to fulfill |
| C．will help; fulfilling | D．to help; fulfilling |
—Why didn't you go fishing with your friend yesterday?
—Well, fishing is a hobby which calls for a great deal of ______ , which I don't have.
| A．strength | B．money |
| C．wisdom | D．patience |
After reading a joke, Tom ______ laughter.
| A．burst out | B．burst in |
| C．burst on | D．burst into |