根据汉语意思完成句子
1、从我家步行到市中心只需20分钟.
It _____ me _____20 minutes from my home to the _____ of the city.
2、我经常骑自行车去青少年活动中心.
I often go to the ____centre ____bike.
3、书房真是学习的好地方.
Study is ____ a good place ____ study.
4、这个钱包可能是赵老师的.
This purse ____ ____ Mr Zhao’s.