— Ring me at six tomorrow morning, will you?
—y that early? I ______ ．
| A．will be sleeping | B．have slept |
| C．have been sleeping | D．will sleep |
Wang Meng's winning women's 500m short track at the Vancouver 2010 Olympics was an exciting moment, ________ all Chinese will never forget.
| A．that | B．it | C．one | D．the one |
. Newly-developed materials for spaceships can _________ extreme weather conditions.
| A．hold | B．support | C．stand | D．carry |
Because of global warming, the ice that polar bears depend on for survival _______.
| A．are slowing disappearing | B．is slowly disappearing |
| C．are slowly disappeared | D．have slowly disappeared |
Ten giant pandas are heading to the Shanghai Expo, _________ they will go on year-long display.
| A．which | B．where | C．what | D．when |
-- The terrible accident is under investigation.
-- Actually, quicker action ________ those workers trapped in the mine.
| A．might have saved | B．must have saved |
| C．should have saved | D．could have saved |