They are talking _______ they were old friends.
| A．as if | B．as although | C．even if | D．even though |
Usually John would be late for meetings .But this time ,________to my surprise ,he arrived on time .
| A．little | B．much | C．ever | D．even |
There have been several new events ______to the program for the Beijing Olympic Games .
| A．add | B．to add | C．adding | D．added |
Wang Wei had served ______a volunteer for three years before he graduated from college .
| A．as | B．for | C．at | D．in |
The little boy ,out of curiosity ,_______the toy to see how it worked ,but couldn’t put it together .
| A．took apart | B．broken down | C．burst into | D．knocked off |
They have always treated us with open hands and we must be generous _______.
| A．in return | B．in addition | C．in vain | D．in case |