C.won't forget
hope引导宾语从句时的用法：
1）hope作为动词,经常引导一般现在时的宾语从句,表示对未来的期待和希望,当主语为第一人称时,这种用法尤为常见.比如：
I hope she likes the flowers.
I hope the cavalry arrive soon.
2）表示否定性的希望时,hope与其他近义动词的用法不同.
我们说：I don't think/suppose/expect/believe she'll come.
但用hope时,则要说：I hope she won't come.
3）so或者not跟随hope,可以简短地表示肯定或否定的愿望.
—Do you think Mary will come?
—I hope so./ I hope not.
4）可以用过去完成时表达失望之感：
I had hoped that Jennifer would become a doctor,but she just wasn't good enough at science.
这一题,就是上面第2种情况.