通读下面短文，掌握其大意，然后从短文后面的括号内选出可以填入短文空格处的词。
Peter is a famous writer now. But he was not a 1______ student when he was young. He was often late
for 2______ and didn't like doing his homework. Sometimes, he slept in class while the teacher was teaching.
He didn't understand much, 3______ he always thought he understood everything. One day the teacher 4______
the students a question, "When Mike was ten years old, 5______ brother Bob was twenty, Mike is fifteen now
and 6______ is his brother Bob?" Peter said, "That's easy. Bob is twice as old as Mike, so he is now thirty."
Another time, the 7______ in a science class asked, "When it thunders (打雷), 8______ do we always see
the light before we 9______ the sound?"
"But Miss," said Peter quickly, "Don't you 10______ our eyes are in front of our ears?"
(A. asked B. why C. class D. but E. his F. good G. teacher H. know I. how old J. hear)
