1 . Since he first started volunteering his car to the young people, Wilson has covered an __________ (astonish)64, 000 miles, and has had countless pleasant and often humorous conversations with the students he transports to and from school. (所给词的适当形式填空)

2 . As a child, sometimes social occasions were __________for me. I would feel __________when among strangers. After several years of volunteer work in community, such __________ disappeared. (embarrassed)（所给词的适当形式填空）