英语填下空

英语填下空
TOW weeks after the Second World War began,Peter w________ to join the army,but he was only 16 years old ,and boys were allowed to join only if were o_______________ So when the army doctor examined him he said that he was 18.Bus Peter's brother Bill had joined the army a few days b________ ,and the same doctr had examined,too.This doctor remembered Bill's family name ,so wen hesaw Peter's papers,he was surprised.
"Hod old are you?" he said
"Eighteen,Sir."said Peter
"But your brother was eighteen,too."said the doctor,"Are you t___________ "
"OH,no,Sir"said Peter,and hia face went red ,"My brother is five months o______________ than me."
（感想——手好痛!-
if ( they )were o__________