A small car is big for family of three_______ you need more space for luggage.
| A．once | B．because | C．if | D．unless |
Do not expect pupils to be identical.Every child is________，with their own needs，preferences and talents.
| A．original | B．similar |
| C．unique | D．equal |
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 |