The houses in this village are______built of bricks.
Nowadays people sometimes separate their waste to make it easier for it to _____.
Some people fear that _____ air population may bring about changes in _____ weather around the world.
How much ______ she looked without her glasses!
----What is the price of petrol these days? ----Oh, it _____ sharply since last month.
The practice of hanging clothes across the street is a common _____ in many parts of the city.