某投资者在10月份以80点的权利金（每点10美元，合500美元）买进一张12月份到期、执行价格为9500的道·琼斯指数美式看涨期权，期权标的物是12月到期的道琼斯指数期货合约。若后来在到期时12月道·琼斯指数期货升至9550点，若该投资者此时决定执行期权，他将亏损（）美元。（忽略佣金成本）

A.80

B.300

C.500

D.800

请根据下列句子及所给汉语注释，在答题卡上标有题号的横线上，写出空缺处各单词的正确形式，每空只写一词。

小题1: This idea is_________ (愚蠢的)than that one．Do you agree with me?

小题2: He kept___________ (日记)when he was young．

小题3:It’s impossible to make everyone___________ (满意)with the arrangement．

小题4:All the students are___________ (要求)to get to school on time．

小题5:My cousin went to            (大学)when he was eighteen years old.

小题6: His___________ (行为)towards me shows that he doesn’t like me．

小题7:We ___________ (许诺)to give your money back if it doesn’t work．

小题8:Most of our chemistry _________ (实验)are done in the chemistry lab．

小题9: Every _________ (可找到的)doctor was called to the scene（现场)．

小题10: Tom often ____________ (争论)with others．