Medical doctors sometimes can make mistakes _______ will cost ________.
| A．that; patients their lives |
| B．what; patients their lives |
| C．which; patients for their lives |
| D．that; patients with their lives |
The natural reserve is ______ large that you have to take shuttles to visit different sections in it.
| A．such | B．very | C．too | D．so |
______ any change about the date，please tell me immediately.
| A．Will there be | B．Should there be | C．There will be | D．There should be |
It is not known yet how these huge stones were __________over a distance of 380 kilometers.
| A．removed | B．transformed | C．transmitted | D．conveyed |
People wrote letters to get in touch in the past. Nowadays email has the way people communicate.
| A．directed | B．conveyed | C．transformed | D．sponsored |
In recent years, China and the USA have had a lot of ___________of views about the same problem.
| A．replacements | B．transformations | C．changes | D．exchanges |