Attributive clause

The boys ( ) are playing football are from Class One.

(a)  

Answer explanation

Who refers to a person and is the subject in the subordinate clause.

Mr. Liu is the person ( ) you talked about.

(a)  

Answer explanation

Whom refers to a person, acts as an object in a definite clause, and can often be omitted.

---Do you know the man ______is talking with your father？      

---Yes, he‘s our headmaster.

• he

• who

• Which

• Whom

Do you know the scientist _______ gave us a talk just now?

• Who

• Whom

• Which

• Whose

—Do you know the girl _______ is standing under the tree?    

—She is my little sister.

• Who

• Whom

• Whose

• Which