REWRITE EACH SENTENCES:
1. They thought much about their work.
-> They gave a lot of thought to their work. (to give thought to sth: suy nghĩ điều gì)
2. There is a tendency to minimize the problems.
-> They have a tendency to minimize the problems. (to have a tendency to do sth: có xu hướng làm gì)
3. The teacher punished the boy for his disobedience.
-> The boy was punished for his disobedience. (to be punished for sth/doing st: bị phạt)
4. John hasn't had his hair cut for over six month.
-> It is over six months since John last had his hair cut.
5. Jane thinks politics is very interesting.
-> Jane is very interested in politics. (to be interested in sth: yêu thích cái gì)