I should very much like to have gone to the party, but ______.
| A．I'm not invited | B．I won't be among the invited |
| C．they won't invite me | D．they didn't invite me |
As you know，it is my duty to________my younger sisters from being hurt when they are in danger.
| A．prevent | B．save | C．stop | D．protect |
If no measures are taken, the special wild plant will ________ some day.
| A．die out | B．die away | C．die down | D．die off |
Sir, you ________ take this seat. It’s just for the old.
| A．won’t | B．can’t | C． oughtn’t to | D．needn’t |
He spoke as though he________ anything of the world.
--Really?
| A．knew | B．had known | C．knows | D．has know |
As we know, the 2008 Olympic will________ in Beijing, China.
| A．take place | B．be taken place | C．be to be held | D．hold |