The thought _____ they could cross the whole continent was exciting.
| A．that | B．what | C．which | D．why |
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 |
The old man has two sons，________is a soldier.
| A．one of whom | B．both of them | C．all of whom | D．both of whom |