More and more cancer patients _________ in hospital owing to polluted environmen

题干

More and more cancer patients _________ in hospital owing to polluted environment and people’s bad lifestyles.

A．treated	B．have treated
C．have been treated	D．had been treated

上一题下一题 0.4难度单项选择更新时间:2019-02-18 09:01:33

小学学科试题库

初中学科试题库

高中学科试题库