他把钥匙放在桌上。

He ___put the keys on the table.

她用简单的话把复杂的想法表达得很清楚。

She ___put the complicated idea into simple words.

老师的表扬让他一整天都心情愉快。

The teacher's praise ___put him in a happy mood all day.

老师把这次事故的责任归咎于学生。

The teacher ___put the responsibility for the accident on the students.

他为这个新项目投入了大量时间和精力。

He ___put a lot of time and effort into this new project.