31.Read and judge.(閱讀短文,判斷句子正"T"誤"F"。) Bill and Kevin are good friends.Bill is thirteen years old and Kevin is twelve years old.They're students.They're hard-working at school.Bill's favourite class is science because it's interesting.He wants to be a scientist.Kevin's favourite class is music because he can sing songs well.He wants to be a music teacher.Bill and Kevin like playing football.They often play football on the weekend. (1)Kevin is 13 years old.
(2)Bill and Kevin are hard-working at school.
(3)Bill wants to be a scientist.
(4)Kevin can sing songs well.
(5)Bill likes playing football,but Kevin doesn't like playing football.