Tom’s bike is broken．It needs ________．

1.Tom's bike is broken. Can you help he?
  _______________________________________
2.There aren't some children in the river.
  _______________________________________
3.Look! The boy swimming in the lake.
  ___________________________________
4.There are 150 millions people in the city.
  ___________________________________
5.Learning English are a lot of fun.
  ___________________________________

A. me
B. his
C. your
D. her

A. my; mine        
B. mine, his  
C. my; his          
D. her; hers