You can make a ______ by turning off the light after you leave the house.
| A．difference | B．decision | C．promise | D．mistake |
—Would you mind if I turned off the air conditioner?
—______. It makes no difference to me.
| A．Never mind | B．Not at all | C．Sure, go ahead | D．Why not? |
The suggestion they all objected to to be effective finally.
| A．proving | B．prove | C．had proved | D．proved |
The Diaoyu Islands, which lie in ____ East China Sea between China and Japan have belonged to China since ____ ancient times．
| A．the; the | B．the;/ | C．/; the | D．/ ; / |
exact
| A．example | B．extra | C．extraordinary | D． explain |
theory
| A．southern | B．sympathy | C．smooth | D．bother |