Some people get in touch with each other by mobile phones__________ others keep contact with each other by e-mail.
A. while B. before C .when C. since
T0 make members 0f a team performbetter,the trainer first of all has to know their_______and weaknesses。
| A．strengths |
| B．benefits |
| C．techniques |
| D．values |
When Jane began to take swimminglessons,her main_______was the fear of water。
| A．evidence | B．crisis |
| C．obstacle | D．danger |
Finding information in today’s world is easy．The_______is how you can tell if the information you get is useful or not。
| A．ability | B．eompetition | C．challenge | D．knowledge |
It is no______arguing with Bill because he will never change his mind。
| A．use | B．help | C．time | D．way |
Her question was so difficult that I could hardly make any ____ of it at all.
| A．explanation | B．meaning | C．sense | D．idea |