读短文，选出正确的选项，将其标号填入题前括号内。(共5分，每小题1分)
Buy a ball for you!
Mark likes sports. He’s a tall and strong boy in his middle school. Now his father and his mother work in London, so he begins to study in a middle school there. He's a member of the school football team. He likes football very much and plays it on Saturdays and Sundays.
His grandma lives in a small town. One day she comes to see him. It's Saturday and she  doesn't see Mark at home. So she goes to look for him in the school. She sees many boys running after only one ball. The old woman tells Mark to go home with her.
"But，Grandma, I….."
"Don't play with them, my dear!”says the old woman, "I'm going to buy a ball for you!”
(      )（1）Mark is strong because_______.
A. he's tall          B. he's a student          C. he likes sports
(      )（2）Mark lives _____ now.
A. in a village          B. in London          C. with his grandma
(      )（3）Mark______ on Saturdays and Sundays.
A. plays basketball       B. plays football       C. does some housework
(      )（4）________，so his grandma doesn't find him at home.
A. Mark goes shopping      B. Mark leaves London       C. Mark is at school
(      )（5）The old woman doesn't know how to play football，so  she_________.
A. watches the game for a long time
B. tells the boy to go home with her
C. gives the team a new ball