pp-1-72

blazingsun812

72. The brightly colored kingfisher that perches until it sights a fish, then dives into the water to catch its prey.

答案是B,将that去掉

可是不明白,这样主语就有两个谓语,我觉得应该在then 前加and

请高人指点

shirley_zhu

then 有这样的用法，表示两个先后动作。请看朗文的解释：

-used to say what happens next or what you do next
eg: Mix the flour and butter, then add the eggs.

blazingsun812

got it xiexie