用所给单词的适当形式填空.
To our joy,Tu Youyou,a Chinese woman scientist,won the Nobel Prize in her (eighty).
﹣﹣May I speak to Nick?﹣﹣Sorry,he's (go) to Paris and will be back in 2weeks.
After the Senior High Entrance Exam,I'll have a two (month) holiday.
While Mr.Johnson was (work) in the office,the phone rang.
The mother bought a lovely doll for her daughter on her (six) birthday.
The little girl is often afraid to (cross) the street.