0801 SAT 一真题It was obvious that all of the candidates had pl
0801 SAT 一真题
It was obvious that all of the candidates had planned carefully for the televised debate,for each answer to the opening question showed evidence of having been rehearsed.
为什么后面是用having been rehearsed,现在完成时,而不是had been rehearsed,过去完成时啊?
至少也应该是过去时啊.