1) VALUE
Your help has been ....... I couldn't have finished my essay without it.

2) HUMOUR
You'll enjoy reading this book. As well as being informative it's really ..... in places, too.

3) ACCEPT
Many people think that capital punishment is completely ......

4) MAINTAIN
If regular ..... is carried out the machine should last for years.

5) ADD
More people are turning to organic food these days because they're worried about all the different ........ in processed food.

6) SENSE
Despite her young age she's very ..... and can be trusted to do the right thing.

7) LONELY
There is growing concern about the problem of ..... in western society.

8) NOTICE
There has been a ..... improvement in his behaviour since we moved him to a different class.