摘要： These measures helped to the city’s population.
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选词填空
hold back阻碍，阻止 hold down控制，镇压
hold on别挂(电话)，支持下去 hold out维持，坚持
(1)Hearing the news, she couldn’t ________ her tears coming down her cheeks．
(2)“________, please．I heard a pleasant voice on the phone．
(3)These measures helped to ________ the city’s population．
(4)The water won’t ________ much longer．