"it's an intellect to which one still listens"中的"to"可不可以改成"f

"it's an intellect to which one still listens"中的"to"可不可以改成"f The book is a living voice,it is an intellect to which on st 英语翻译b3U51.it”s harmful to one”s health to take to smoking an It's difficult for me to(d )which one to choose,because both It’s difficult for me to decide which one to choose,because It's difficult for me to decide which one to choose,because It’s difficult for me to decide which one to choose, because 我想问一道英语选择题It's difficult for me to decide which one to choos It's still too early to quit. It's still early .we need not hurry可不可以把need改成must It's still polite to give up your seat to an old man 里为什么要加a sharpen one's intellect什么意思?