初二年级英语首字母填空,
问题描述：
初二年级英语首字母填空,
Some do and some don't it!Whales are divided into two main g_____.The first are toothed whales w______ have lots of teeth that use to c______ fish and other sea animals.This group includes killer whales and dolphins.The s_______ type are baleen whales.Humpback whales and grey whales are baleen whales.In f______,the biggest animal that ever existed —— even bigger than the dinosaurs——is the blue whale,and it doesn't have any teeth.
答
groups
which
catch
second
former