Helping others is a habit, you can learn even at an early age.
| A．it | B．that | C．what | D．one |
In April, 2009, President Hu inspected the warships in Qingdao, ______ the 60th anniversary of the founding of the PLA Navy. 
| A．marking | B．marked | C．having marked | D．being marked |
The World Health Organization gave a warning to the public without any ______when the virus of H1N1 hit Mexico in April, 2009.
| A．delay | B．effort | C．schedule | D．consideration |
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 |