What do you mean by saying there are only ten tickets?There be twelve.
| A．could | B．should | C．would | D．can |
Three years ago，a society was set up to________the endangered animal and plant life from dying out in this area.
| A．obtain | B．preserve |
| C．observe | D．deserve |
It was during the Ming Dynasty________the Great Wall was repaired and extended to take on the appearance it has today.
| A．when | B．which |
| C．what | D．that |
Not only________to turn off the lights in the kitchen，but we also failed to lock the front door.
| A．we forgot | B．forgot we |
| C．did we forget | D．we did forget |
Our country is developing at an amazing speed，which is________makes me feel so proud.
| A．what | B．why |
| C．that | D．where |
—What do you know about Bill Gates?
—As far as I know，when he was a child，he showed a________of interests in everything around him.
| A．series | B．variety |
| C．good deal | D．large amount |