特殊疑问句 What... can you see? — 英语情景题

情景对话：Sam 和 Lily 坐在飞机上，正从窗外看云和大海。（补全对话，每空一词） Sam: Lily, what can you (1)________ out of the window? Lily: I (2)________ see the sea and some boats. Sam: Wow! (3)________ can you see near the sea? Lily: I can see a small island. And (4)________ are some birds in the sky. Sam: How many (5)________ can you see? Lily: One, two... I can see three birds.