Don’t all speak at once! ________, please
| A．Each at one time | B．One by one time |
| C．One for each time | D．One at a time |
Yao Ming has retired from the NBA, the pleasure we have got by watching him play basketball at home and abroad will last long．
| A．Although | B．If | C．'Since | D．Once |
Taobo is Asia's largest retail（零售的） network platform, ______ people can buy and sell many kinds of things．
| A．where | B．when | C．that | D．whose |
the fierce competition in finding a good job in big cities, many fresh graduates are trying their fortune in medium-sized cities like Wuhu City．
| A．Regardless of | B．Apart from |
| C．Instead of | D．Due to |
Dogs are our good friends as they can keep ______ with us when we are lonely．
| A．ambition | B．company | C．balance | D．distinction |
After work I went to the box office to buy the tickets for Kungfu Panda 2．only to be told there was ______ left．
| A．nothing | B．none | C．no one | D．neither |