some of the passengers appear____in the accident.

题目

some of the passengers appear____in the accident.
A.to be injured B.to have been injured
C.being injured D.to injure
为什么不选to be injured

答案

B
一些乘客看起来像是已经在事故中受伤了.
appear to have done是描述过去已经发生的事．
因为是已经发生的事.要用have done