There _____ be a shortage of water in Yunnan? I wonder. You know it is in the southwest of China where there used to be adequate rain .
A could B must C can D should
6. Measures have been taken to prevent accidents, but much ______ for more improvement.
| A．remains to be done | B．is remained to do |
| C．remains to do | D．is remained to be done |
5. From this story, you can have some idea ______ can be used in reality.
| A．that you have learned | B．how what you have learned |
| C．how that you have learned | D．how you have learned |
4. We believe ______ you have been devoted to ______ naturally of great necessity.
| A．that; being | B．all that; be | C．what; is | D．that all; are |
3. ______, I can spare no time for it now. I’ll have to finish my homework first.
| A．However exciting the football is | B．No matter exciting the football is |
| C．However the football is exciting | D．No matter how the football is exciting |
2. Can you explain ______ that the medicine has for my illness?
| A．about the function to me | B．me about the function |
| C．me the function | D．to me the function |