The other two areas ____ British and American English differ are spelling and pronunciation.
| A．in which | B．which |
| C．that | D．what |
______ has finished the work ahead of time will be rewarded though we don’t know______ it will be.
| A．Who; who | B．Whoever; whoever |
| C．Who; whoever | D．Whoever; who |
Tom apologized for______ to inform us of the change in the working plan.
| A．his not being able | B．him not to be able |
| C．his being not able | D．him to be not able |
Progress so far has been very good. ______, we are sure that the project will be completed on time.
| A．Therefore | B．Otherwise |
| C．However | D．Besides |
The shooting centre is about 50 kilometers ______Beijing.
| A．south of | B．in south of |
| C．the south of | D．southern of |
First impressions are the most lasting. After all, you never get ______second chance to make ______ first impression.
| A．a; the | B．the; the | C．a; a | D．the; a |