题目内容：

The giraffe is the tallest modern land animal. It can be over 5. 5 meters tall. Its neck alone may be 1. 9 meters long. Yet the giraffe has only seven bones in its neck, the same number as in the humans’. Even a small bird has more bones in its neck than a tall giraffe. Each bone in a giraffe’s neck is very long, while the bones in a human’s (人的)neck are ______. That makes the difference. A female giraffe gives birth to one baby at a time. The baby, called a calf, is about 1. 9 meters tall at birth. By the age of eight, it is full-grown. The giraffe eats mostly leaves. Because it has a long neck, it can reach the high leaves on the trees.

1.It can be over 5.5 meters long.(同意转换)

It can be ______ ______ 5.5 meters long.

2.根据上下文，补全横线处所需的单词。

Each bone in a giraffe’s neck is very long, while the bones in a human’s neck are _________.

3.将下面的句子翻译成汉语。

By the age of eight, it is full-grown.

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4.Why do the giraffes eat mostly leaves?

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5.The neck of the giraffe alone is 1. 9 meters long. (判断正误T or F)