.Among all the problems,_______is so difficult as this one.
| A．not one | B．either | C．neither | D．none |
–My uncle will be here to attend a meeting tomorrow.
--Oh, I though that he____ today.
| A．was coming | B．is coming | C．will come | D．can come |
______ number of people who use English as ______ second language is increasing in China.
| A．A; a | B．A; the | C．The; a | D．The; the |
This is such a letter ____came last night．
| A．who | B．which | C．that | D．as |
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 |
Immediately, the people around made_________ to hospital.
| A．the injured send | B．injured send | C．the injured sent | D．injured being sent |