21. His wife is constantly funding ________ with him， which makes him very angry.

A) errors B) shortcomings C) fault D) flaw

22. Vitamins are complex ________ that the body requires in very small mounts.

A) matters B) materials C) particles D) substances

23. The police are trying to find out the ________ of the woman killed in the traffic accident.

A) evidence B) recognition C) status D) identity

24. All human beings have a comfortable zone regulating the ________ they keep from someone they talk with.

A) distance B) scope C) range D) boundary

25. We have planned an exciting publicity ________ with our advertisers.

A) struggle B) campaign C) battle D) conflict

21-25 CDDAB