Their unexpected         (到达)threw our plan into confusion.
We spent two hours analysing the team’s strengths and           (缺点).
Flying across the Atlantic for the first time was a great            (成就).
The teacher showed          (特别的)concern for the disabled girl.
The writer has a           (独一无二的) style, which makes him world-famous.
It’s illegal to read people’s private letters without p          . 
No one knows the o        of life on earth.
They have e           the business by opening three more stores.
The room is 15feet in l        and 10feet inwidth.
Mount Tai has become a tourist a          all over the world.