问题
选择题
.More patients ＿＿ in hospital this year than last year.
A．treated
B．have treated
C．had been treated
D．have been treated
答案
答案：D
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.More patients ＿＿ in hospital this year than last year.
A．treated
B．have treated
C．had been treated
D．have been treated
答案：D