Fill in the gaps with suitable prepositions or adverbs where necessary: 1. a decision has to be period of three months 2. employment has people over 55. 3. we see a rapid the use of the internet. average, women live five and seven years longer than men. 5. the trip was cancelled because of safety. 6. he believes that children should have their own lives

1. A decision has to be made within a period of three months.
2. Employment has risen among people over 55.
3. We see a rapid growth in the use of the Internet.
4. In average, women live five and seven years longer than men.
5. The trip was cancelled because of concerns about safety.
6. He believes that children should have control over their own lives.