1．I have ever witnessed(目睹) a fearful accident.
2．When the artificial flowers are contrasted(对比) with natural ones, you can hardly tell the difference.
3．He made himself understood with the help of gestures(手势)．
4．How many people does the company employ(雇用)?
5．The students were asked to interpret(解释) the poem.
6．The grass in the yard was waist(腰) high.
7．They said, after digging around, the photo was fake(伪造的)．
