The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.
| A．which | B．when |
| C．as | D．where |
Xiamen—Shenzhen High Speed Railway opened to traffic on Dec.28 last year, _______ the two of China’s economic zones.
| A．to link | B．linking |
| C．linked | D．having linked |
________ with the courage and determination of the young cancer patient, many people left messages in his microblog, encouraging him to fight with the disease.
| A．To impress | B．Impressing |
| C．Having impressed | D．Impressed |
Having taken our seats, _______.
| A．the professor began the lecture |
| B．the lecture began in no time |
| C．we were attracted by the lecture immediately |
| D．the bell announced the beginning of the lecture |
The students listened carefully to the teacher with their eyes _____ on the blackboard.
| A．focused | B．to focus |
| C．focusing | D．being focused |
With our knowledge practice , we can make contribution to our society.
| A．to base on | B．basing on |
| C．based on | D．base on |