Many people are taking part in various outdoor activities ______themselves.
| A．refreshed | B．to refresh | C．being refreshed | D．having been refreshed |
She is so ___ that no one can ever persuade her．
| A．reliable | B．stubborn | C．artificial | D．intelligent |
There is no decision yet ______ when the work might start．
| A．due to | B．as to | C．in addition to | D．owing to |
．The two brothers look so much ___ that we can’t___ one from the other．
| A．familiar, separate | B．familiar, tell |
| C．alike, differ | D．alike, distinguish |
For some time now, Chinese people under the leadership of CPC____ the contents of Scientific Development Theory in the course of practicing socialism in China．
| A．had been improving | B．have been improving |
| C．were improving | D．improved |
I had just stepped out of the bathroom___ I heard the steps．
| A．while | B．when | C．since | D．after |