根据课文内容填空
1.The reading passage is two     written by an old man called Clancy.
2.It was a time when the killer whales, or “killers” as they were then    ,helped the whalers catch the baleen whales that were on their              .
3.I thought ,at that time, that this was just a story but then I     it with my own eyes many times.
4.There ‘s no     or water and even no     either! I’m still trying to     to these conditions.
5.Science is my most challenging subject as my students have no     of doing experiments.
6. Sometimes I wonder how     chemistry is to these students, most of whom will be going back to their villages after Year 8 anyway.