下線部を代名詞にMy parents are in the brass band.
答They are in the brass band.
主格（my parents → they）
下線部を代名詞にYuki is good at soccer.
答She is good at soccer.
主格（Yuki → she）
下線部を代名詞にMy brother is very kind to us.
答He is very kind to us.
主格（my brother → he）
下線部を代名詞にI often help Kate and Emi.
答I often help them.
目的格（Kate and Emi → them）
下線部を代名詞にDo you know Mr. Brown?
答Do you know him?
目的格（Mr. Brown → him）
下線部を代名詞にEveryone likes my classmates.
答Everyone likes them.
目的格（my classmates → them）
下線部を代名詞にThis is Ken's new car.
答This is his new car.
所有格（Ken's → his）
下線部を代名詞にI like Emi's bag very much.
答I like her bag very much.
所有格（Emi's → her）
下線部を代名詞にThis bike is Mr. Sato's.
答This bike is his.
所有代名詞（Mr. Sato's → his）
下線部を代名詞にThat bag is Ms. Green's.
答That bag is hers.
所有代名詞（Ms. Green's → hers）