1．(2018·全国卷Ⅰ)You may drink, smoke, be overweight and still reduce your risk ________ dying early by running.
[答案] of
2．(2018·全国卷Ⅰ)To avoid knee pain, you can run on soft surfaces，do exercises to ________(strength) your leg muscles, avoid hills and get good running shoes.
[答案] strengthen
3．________________(abuse) his position as mayor to give jobs to his friends，William is now under investigation.
[答案] Having abused
4．________________(addict) to online shopping for too long，according to a survey conducted recently，will greatly decrease people's desire to take part in social activities.
[答案] Being addicted
