问题
选择题
Ever since the patients moved to the new hospital last year, they better medical treatment.
A．have received
B．had received
C．will receive
D．received
答案
答案：A
题目分析：句意：自从这些病人去年搬到新医院，他们已经受到了更好的医护治疗。和ever since…连用，用现在完成时表示动作从过去到现在一直在做，所以选A。