2 . The tennis players need to ________ ________ (集中精力于) themselves during play. (根据汉语提示完成句子)

3 . I can’t _________________my work (集中精力于) with all that noise going on. (根据汉语提示完成句子)

4 . But spending too much time online is unhealthy and makes it very difficult to f________(集中，特别关注)other things in life. (根据中英文提示填空)

5 . While reading, you should ________ ________(集中精力于) the sentences’ idea, not the single word. （根据汉语提示完成句子）

6 . The lecture we went to last night ______ (集中；关注)English learning strategies. (根据汉语提示完成句子)

7 . ________ (如果你一直专注于你的学习) all the time, you can do it well. （根据汉语提示完成句子）

8 . Her worry makes it impossible for her to ______ (集中精力，全神贯注于) on her work. (根据汉语提示单词拼写)

9 . With all his attention ____(集中) his work, he didn’t notice what happened outside.