We have got two children，Jack is seven and his little brother ，Nick is four．They're quite close and play a lot together．They quarrel quite a lot， too， but they enjoy each other's company．

Unluckily，we live quite a long way away from the others of the family． It's an eight﹣ hour drive to get to their grandparents，but we usually visit them during the school holidays．

Jack reads well，but he didn't start to read for pleasure． He thinks reading is only something you have to do at school．I think the main problem is： he always watches TV．

He also likes playing cards and computer games and riding his bike． I don't let him ride it on the street，but we often go to the park，where it's safer．

He doesn't eat too many sweets， because he's getting his adult teeth now and he knows they have got to last him for life．He seems more interesting in saving his pocket money and counting it more than spending it．

根据短文内容，回答下面的问题．

（1）How many people are there in Jack's family？ 　　

（2）When does Jack usually visit his grandparents？ 　　

（3）Where does Jack often go to ride his bike？ 　　

（4）Why doesn't Jack eat too many sweets？ 　　

（5）What do you know about Jack in reading？