阅读理解
My grandfather was a teacher.He was the headmaster of a school for boys between the ages of thirteen and eighteen.I know that he was a kind and gentle man at heart,because when I was young (and he was
old),he gave me presents,and seated me on his knees,and told me stories,but I believe the boys at his
school were afraid of him.
At school,when he walked into a room full of noisy boys,there was silence at once.When he looked at a boy with a certain look in his eyes,that boy went red in the face,and looked down at his shoes.If a boy
brought him poor,careless work,which was not the best that boy could do,my grandfather picked up the
boy's book and threw it across the room,shouting,"Do it all again,and bring it back early in the morning!" If the boy was late,or if he forgot to birng the work,he had to do it again 
and again,and yet again.My
grandfather never forgot.
He was a very different man at school from the man I saw day by day in his own home.
1. I know my grandfather was kind and gentle,because________.
A. he was the headmaster of a boys' school
B. he gave me presents and told me stories
C. he told me stories about how kind he was
D. he never scolded me
2. When he looked at a boy in a certain way,that boy________.
A. went red in the face and could not return my grandfather's look
B. looked back at my grandfather's red face
C. changed another one
D. went red in the face because his shoes were dirty
3. My grandfather didn't like to receive________.
A. worse work than he could do himself
B. work that the boys could not do
C. work that was not as good as the boys could do
D. the work that the boys did
4. When he received poor work,my grandfather________.
A. shouted at the boy and threw his work across the room
B. went red in face
C. threw the book on the floor,and shouted across the room
D. threw the book at the boy
5. He was a different man at home because________.
A. he didn't get angry at school like he did at home
B. he was not as gentle as at home
C. he didn't throw books about at school like he did at home
D. he didn't usually get angry at home
