`1`. The film, which I watched last night, was interesting.

`-` Đại từ quan hệ: which

`+` Chỉ sự vật/ sự việc

`+` Thay thế cho S/ O chỉ sự vật, sự việc

`+` Sau nó là V/ S2

`2`. The man, whom Carly helps, is my teacher.

`-` Đại từ quan hệ: whom 

`+` Chỉ người

`+` Thay thế cho tân ngữ chủ người

`+` Sau nó là S2

`3`. The chicken, which we ate at the restaurant, was delicious.

`-` giải thích giống câu `1`

`4`. The boy, whom I know from school, is very nice.

`-` giải thích giống câu `2`

`5`. The shoes, which my grangma bought for me, are too big.

`-` giải thích giống câu `1`

`1`.The film which I watched last night was interesting 

`->` Which là ĐTQH dùng để thay thế cho DT chỉ vật ( `1 , 3 , 5` )

`->` Which `=` The film 

`2`.The man whom Carly helps is my teacher

`->` Whom là ĐTQH dùng để thay thế cho Tân ngữ ( `2 , 4` )

`->` Whom `=` The man

`3`.The chicken which we ate at the restaurant was delicious

`->` Which `=` The chicken

`4`.The boy whom I know from school is very nice

`->` Whom `=` The boy

`5`.The shoes which my grandma bought for me are too big

`->` Which `=` The shoes

`\text{# TF}`