1 . With his attention _____________ (专注于) his book, he didn’t notice someone entering his room. (根据汉语提示完成句子)

2 . With his attention ________ (concentrate) on the lecture, he didn’t pay any attention to his cellphone. (所给词的适当形式填空)

3 . Doctors are _______ (concentrate) on understanding the disease better, trying to find the best treatment. (所给词的适当形式填空)

4 . With his attention ________ (concentrate) on the shops along the road, he knocked an old man down. (所给词的适当形式填空)

5 . With so much noise going on, I can’t ________ (concentration) on my work. (所给词的适当形式填空)

6 . My car crashed into a cat with my attention __________ (concentrate) on listening to music. (所给词的适当形式填空)

7 . As a senior high student, we find it quite important ______ (concentrate) on the teachers in class, which can improve our understanding of the contents. (所给词的适当形式填空)

8 . ______ (concentrate) on their research, the scientists didn’t sleep for a whole night. (所给词的适当形式填空)

9 . With all his attention_______(concentrate) on the painting, he didn’t notice me come in. (所给词的适当形式填空)

10 . She found that if she________ (concentrate) on the ideas, not the single words, she could understand the native English speakers. (所给词的适当形式填空)