Jack is believed _____ his goal, who is said ____ the stage.
| A．to achieve; to leave |
| B．having achieved; to have left |
| C．to achieve; having left |
| D．to have achieved; to have left |
It is so noisy in the restaurant and hard for us to ________ a conversation.
| A．go on | B．keep on | C．carry on | D．take on |
Studies show that people are more_____ to suffer from back problems if they always sit before computer screens for long hours.
| A．likely | B．possible |
| C．probable | D．sure |
A survey of health researchers ______ that four hours of exercise every week ____ good for our health.
| A．show; are | B．shows; is |
| C．show; is | D．shows; are |
----- I think Jason is wise to accept the job offer in Paris.
------__________. His career will soon get off to a good start.
| A．That’s not the case | B．Not really |
| C．Absolutely | D．It depends |
________ time at Beijing Normal University, I am very impressed with the quality of the teachers and students.
| A．Having spent | B．Being spent |
| C．To spent | D．Spending |