每個句子中均有一個詞或詞組用斜體字型，請從四個選項中選擇一個與斜體部分意義相近的詞或詞組代替或解釋句中的劃線部分。

　　21. We want to know his family background.

　　A relationships B members C troubles C income

　　22. The mail was delayed for tow days because of the snow-storm.

　　A held in B held up C held down D held off

　　23. She gave up her job to look after her invalid mother.

　　A quitted B lost C paused D retired

　　24. Do you need anybody to assist you in your work?

　　A inform B aid C direct D instruct

　　25. Of the reptile groups, the snake group was the final one to appear.

　　A. last B best C ugliest D longest

　　26. The room was filled with the scent of flowers.

　　A atmosphere B pot C feature D odor

　　27. He comprehends the theory of relativity.

　　A teaches B learns C investigates D understands

　　28. We propose to furnish our own house according to our own taste.

　　A display B fix C paint D d***rate

　　29. In that organization, they place emphasis on helping one another and on cooperation.

　　A hopes B pressure C stress D demands

　　30. For a beauty competition you need a pretty face and a good figure.

　　A fashion B frame C shape D shade

　　21.A 22.B 23.A 24.B 25.A 26.D 27.D 28.D 29.C 30.C