you have seen both fighters, will win?
| A．Since; do you think who | B．As; who you think |
| C．When; whoever | D．Since; who do you think |
______ the worker’s working efficiency, the manager will allow him to have a coffee break.
| A．Improving | B．To improve | C．Having improved | D．Improved |
John’s success has nothing to do with good luck. It’s years of hard work ______has made him what he is today.
| A．why | B．when | C．which | D．that |
The country life he was used to ______ greatly since 1998.
| A．change | B．has changed | C．changing | D．had changed |
Though these dresses are low in quality, they may ______ women who don’t want to spend much on clothes.
| A．refer to | B．devote to | C．apply to | D．appeal to |
_____makes him different is ______he can offer more information.
| A．What , that | B．which, that | C．That, that | D．That, what |