单词拼写（满分5分）

小题1:It’s hard to p     him into stopping smoking.

小题2:Scientists have so far failed to find a c    for cancer.

小题3:This film is m    to warn people against drugs.

小题4:Shall I p     you a cup of tea？

小题5:Her facial e     showed that she was angry.

小题6:When did Britain       (宣布) war against Germany in the Would War II.

小题7:Nobody trusted Peter, but he was really       (清白的)

小题8:     (咨询) your teacher when you meet with trouble.

小题9:She       (抱怨) to me about his rudeness.

小题10:If you are not satisfied with this book, I can       (推荐) you another one.

股票S的当前市场价格为40元/股。某投资者花6.8元购得股票S的买方期权，规定该投资者可以在12个月后以每股35元的价格购买1股股票S，则此时该投资者手中期权的内在价值为( )元。

A．5

B．7

C．-1.8

D．0