6 Link the sentences in all possible ways using:
furthermore, in addition, moreover, what is more,
however, but, on the other hand, although.

1 People need to be informed about environmental
problems. They should be taught how to help solve
them.
2 Some people are optimistic about the future. Others
feel that life will become worse.
3 New cars will be more environmentally-friendly. They
will be easier to drive.
4 The amount of pollution given off by factories is
decreasing. The hole in the ozone layer is still growing.
5 Most people live in cities for work reasons. A lot of
them would prefer to live in the country.
6 In the future, cities may have to be protected with
shields. People will have to pay for clean air and water.