1．A large q______________ of air－conditioners has been sold since the temperature is high.
2．Such a mistake would perhaps lead to disastrous c_______________.
3．The a__________ of 4, 5 and 9 is 6.
4．Several cars are available within this price r_________.
5．Many beautiful fish are fast disappearing because of the severe p_____________.
quantity ***consequences***average***range***pollution
