$@dream$

`21,` The house which we want to buy is very beautiful.

`->` which: thay thế cho danh từ chỉ vật

`22,` Even though the test was very difficult, we could do it.

`->` EVen though + S + V, S + V: mặc dù

`23,` I want to help this boy who is very poor.

`->` who: thay thế cho danh từ chỉ người, và sau là động từ

`24,` Romeo and Juliet were lover whose parents hated each other.

`->` whose: chỉ sự sở hữu và sau là danh từ

`25,` This is Mr. Green whose son won the championship last year.

`26,` Though she is poor, she is always happy.

`->` Though + S + V, S + V : mặc dù

`27,` Although he is very rich, he never helps the poor.

`->` Although + S + V, S + V : mặc dù

`28,` The man who was injured in the accident is now in the hospital.

`29,` John is absent from school whose mother is in hospital.

`30,` Simon was busy. Therefore, he couldn’t come to the meeting.

`->` S + V. Therefore, S + V : Vì vậy