A．learn fromB．learnC．knowD．know about

单项选择题

My ears are recently full of joyous remarks from my friends such as, "oh, Beekham is so handsome, so cool, that I can"t help falling in love with him!" Or "what perfect skills he has!" Yeah, I agree 1 some degree, though I sometimes do want to ask them how much they 2 Beckham, apart from his appearance and how much they know about football 3 scoring goals. It seems funny that we are crazy for things, with which we are unfamiliar or 4 we are uncertain, but we all, my friends 5 l, consider this 6 .
We need these pleasures to brighten up our lives. But that doesn"t amount to craziness 7 nonsense(胡闹). As an old saying 8 : "Don"t judge a book by its cover." We should not 9 anything from its appearance. We should all know, it is one"s good character and great contribution that 10 one a star and unforgettable. Therefore we"d better say 11 about Beckham"s good looks.
If we close our eyes, 12 in deep thought, we can find that the things 13 us to be in truth happy, sad or moved 14 a clear meaning. If we don"t go deeper and just satisfied with superficial(表面的) things, 15 we will find that we have not really gained anything 16 our first impression has blinded and misled us, and we"ll remain ignorant(愚昧无知的) 17 we realize that and make some changes.
It is believed that thinking and going deeper than before is sign of great 18 . If one day we are willing to go deeper into everything, no matter how much it 19 us, we will finally prove how much we have grown up, how much more sensible(明智的), mature, and intelligent we have 20 .

A．learn from
B．learn
C．know
D．know about