All our teachers demand that we ___________.
| A．worked hard | B．work hard | C．will work out | D．should be worked hard |
On December 28, 2009, a terrible tsunami happened in the coasts of South and Southeast Asia, _______ over 25,0000 people.
| A．killing | B．had killed | C．killed | D．having killed |
The winning of hosting _______ 2010 World Expo is _______ victory not only for Shanghai residents, but for ___________ people of the whole Chinese nation.
| A．the; a; the | B．a; the; a | C．a; a; the | D．the; the; a |
Out of the crowded bus______, who was dressed in a black suit and waved to a woman..
| A．a tall man in his thirties stepped | B．stepped a tall man in his thirties |
| C．did a tall man in his thirties step | D．did a tall man step in his thirties |
You can either have the double room or the family room,________ you want.
| A．whichever | B．whatever | C．whenever | D．however |
Last month, American scientists started working on _____ project aimed at improving _______ ability to predict earthquake.
| A．the; a | B．a; an | C．the; an | D．a; the |