单选题 A kiwi bird makes the sound "kiwi", so people call it "kiwi". It is a strange sound. But then, the kiwi is a strange bird. It is about the size of a hen. It has a long, thin beak (喙). The beak sticks out from its head like a needle (针). It has wings, but it can"t fly. It has feathers, but they do not look like feathers. They look like hair. Its eggs are so big that four of them together are as heavy as the mother bird.
Kiwi birds are very shy. They run away when people come near. They hide (藏) all day and come out only at night to look for food. When they sleep, they roll up into little balls.
Kiwi birds live in New Zealand, a land far away. In our country, we can see them only in zoos.

单选题 The reading mainly (主要) wants to tell us that ______.

单选题 We learn from the reading that a kiwi bird ______.

单选题 A kiwi bird is ______.

单选题 The sentence "they roll up into little balls" in the reading means ______.

单选题 If you go near a kiwi bird, ______.