Complete the sentences with the correct
form of the words in the box and a
preposition.
expose | harmful protect threaten waste
1 The residents are worried that they have
been
dangerous levels of pollution.
2 Polar bears are among those animals
the loss of the polar ice caps.
3 Those solar panels were a complete
money. There's never enough
sun here.
4 We managed to find a shelter so we
were
the worst of the weather.
5 People are worried that the new factory will
be
the local bird population.