根据句子的意思，填入所缺的单词。(16分)

（1）The giraffe has a ________ neck．
（2）The rabbit’s tail is very ________ ．
（3）The elephant is very ________ and the monkey is ________ ．
（4）The grandma is ________ and the baby is very ________．
（5）Our principal is l60 cm．But his wife is ________，she’s l70 cm．
（6）Our math teacher is very ________．He knows many things．