What are the sentences about concentration?

She was absorbed in her composition in the study, so she didn't hear the phone ring.

Being absorbed in his study, he didn't answer my question.

Dad concentrates on writing at night and often works late into the night.

4. concentrate on your work and don't be distracted.

As in prison, he devoted himself to sewing shoes all day.

If you concentrate on the work at hand, you will finish it soon.

7. Listen carefully in class. You can't look around, and you can't make small moves.

After he retired from politics, he went to the mountains and concentrated on writing.

9. Zhu proposed that "reading three books, the heart is the most important, and you can't learn anything without concentration."

10, in class, I concentrate on listening to the teacher.

1 1. As long as he concentrates, he can turn a deaf ear to the rumble of cars outside.

12, online learning is usually gradual and requires students' concentration.

13. At least six people in the carriage are playing mobile phones wholeheartedly.

14, he is down-to-earth and willing to work. No matter what tasks the leaders give him, he always completes them wholeheartedly.

Xiao Chen is very attentive in class. The teacher asked him a question and he answered it without thinking.