作为保险业的立业之基，最能体现保险业的特色和核心竞争力的是保险的（）。

A.资金融通功能

B.经济功能

C.保障功能

D.互助功能

在下列各句的每个空格内填上一个适当的、完整的单词，该词的首字母已给。

小题1:Tom felt too sleepy to keep a______ in history class.

小题2:I can’t follow you. Can you e_____________ it to me again?.

小题3:Mary is s____________ to be a good learner. Everyone thinks so.

小题4:Last month 10 persons were killed in the traffic a_________.

小题5:He never does anything at home. He isn’t a h_______ boy. He’s a lazy boy.