Vocab 3

Front

Factories must now _____ their water before disposal and prevent dirty smoke emissions.

Back

clean

Front

We (28) _____ put waste in the dustbin, not on the ground.

Back

can

Front

Some plants and insects show high interdependence; eliminating one leads to the other's elimination.

Back

so

Front

Oil will run out before scientists find an alternative energy source.

Back

Oil will have run out before scientists have discovered an alternative source of energy.

Front

Luckily, I _____ a new pair of sunglasses as I found mine at the bottom of a bag.

Back

didn't need to buy

Front

Mark is so _____; always asking about others' business.

Back

nosy

Front

The level of dangerous chemicals is now so low as to be insignificant.

Back

present in the city’s lakes

Front

School rules state no child _____ the premises during the day, unless with an adult.

Back

is to leave

Front

Braille, _____ printing materials for the blind, is a system of raised dots read by touch.

Back

a method of

Front

The boss seemed in a good mood, _____ he snapped at me angrily when I asked him to join us.

Back

yet