1 . ________ (absorb)in painting, John didn’t notice evening approaching. （所给词的适当形式填空）

2 . You become so deeply _______ (全神贯注的) in an activity that you lose track of time. (根据汉语提示单词拼写)

3 . — What kind of person do you think Tom is?
— He is a silent but hard-working student, always sitting there, a_____ in the book he is reading.

4 . My son was so a________ in his book that he didn’t notice my stepping into the room. (根据首字母单词拼写)

5 . I found him sitting in his chair, completely a ____ in a magazine.