求下面这篇英语的答案A Letter From Mar（火星）Dear Earthmen,I have enjoyed

求下面这篇英语的答案
A Letter From Mar（火星）
Dear Earthmen,
I have enjoyed my stay on your interesting planet.I think I understand the life on earth now and I would like to give my impressions(印象).
First of all you live in boxes.Every morning you leave your big boxes and get into smaller boxes on wheels(轮子).All these small boxes run around and around,and finally stop to rest.You leave these boxes on wheels and go to very large tall boxes.
After resting all day you get back in your little boxes and return to your big boxes.There you sit and look at very small glowing boxes with moving pictures on the front.
There is only one thing I don’t understand.I went to a football game one day.A group of angry boys fought a little round ball.Everyone shouted but they kept fighting.They were angry,because they had been kept in boxes all day.I think.
Thanks you earthmen for this chance to get to know you.
Yours
The man from Mars
（ ）46、“Your interesting planet” means .
A、the moon B、the earth C、the sun D、Mars
（ ）47、 “Big boxes” means .
A、large wooden boxes for goods B、streets
C、houses for people to live in D、factories
（ ）48、 “small boxes on wheels” means .
A、trains B、houses C、bicycles D、buses and cars
（ ）49、 “very small glowing boxes with moving pictures on the front” means .
A、TV sets B、radios C、films D、game
（ ）50、The man from the Mars .
A、was afraid of fighting B、enjoyed playing football
C、didn’t understand football at all.D、understand football very well