II. 完形填空（共10题；每小题2分，满分20分）
阅读下面短文，掌握其大意，然后从21—30各题所给的A、B、C和D项中，选出最佳选项。
Married couples 21 more than their homes, cars and finances. They are also likely to have some of the same 22 , experts say. If one of them 23 from asthma (哮喘) , depression, high blood pressure or raised cholesterol n. (胆固醇) levels , his or her partner 24 be afflicted ( vt. 使苦恼,折磨) with the 25 illness , Julia Cox of the University in northern England said. Cox and her team said the most likely 26 for the shared diseases was environment. Married couples usually eat the same foods, are exposed to the same allergens (n. 过敏原) and often have similar exercise patterns, all of 27 contribute to ailments (n. 小病, 疾病) such as allergies, high blood pressure and raised cholesterol. The scientists 28 the medical history of 8,000 married couples, aged 30 to 74. 29 is known, the proper use should be 30 some efficient measures to stop this.
21. A. share B. spare C. own D. use
22. A. cancer B. diseases C. ill D. throat
23. A. keeps B. goes C. suffers D. comes
24. A. should B. shall C. could D. will
25. A. different B. difficult C. similar D. same
26. A. season B. promise C. reason D. approach
27. A. who B. which C. whose D. that
28. A. studied B. read C. copied D. understood
29. A. As B. For C. It D. What
30. A. made to B. made of C. making of D. to make of