B)根据句子意思，用括号中所给的单词适当形式填空。
____ ▲ (wolf) belong to the dog family, living and hunting together.
____ With the money donated, we have ▲ (success) helped many poor young girls return to school.
____ If we always keep our worries to ▲ (we), things will get even worse.
____ Our head teacher warned us ▲ (not fly) kites near power lines in spring.
____ Though it seemed ▲ (hope) to pass the exam, he still kept on trying.
____ A recent scientific report says three ▲ (eight) of the school students suffer from sub-health(亚健康).
