31.The article suggests that when a person ______________ under unusual stress he should be especially　 careful to have a well-balanced diet.

A.is 　　　B.be　　　 C.were　　　　 　D.was

30.This article_____________more attention to the problem of cultural interference in foreign language teaching and learning.

A.cares for 　　B.allows for　　　 C.applies for 　　　　D.calls for

29.By the time he arrives in Beijing, we_______________here for two days.

A.will have stayed 　　B.have been staying　　 C.shall stay　　 D.have stayed

28.All the tasks___________ahead of time, they decided to go on holiday for a week.

A.been fulfilled 　　B.were fulfilled　 C.having been fulfilled 　　D.had been fulfilled

27.Eating too much fat can _________heart disease and cause high blood pressure.

A.attribute to　　 　tribute to　　 C.attend to 　　　　D.devote to

26.______history of the American South is ________history of suffering, also one of hope and success.

A. A; the　　　　 B. The; the　　　　 C. A; a　　　　 D. The; a

25.None of us expected the chairman to __________ at the party. We thought he was still in hospital.

A.turn in 　　　B.turn up　　　 C.turn over 　　D.turn down

24.We hadn' t met for 20 years, but I recognized her_____________I saw her.

A.the moment 　　B.the moment when　　 C.for the moment 　　D.at the moment when

23.In recent years much more emphasis has been put____________developing the students' productive skills.

A.onto　　　 B.over　　　　 C.in　　　 D.on

22.He is always here; it's ___________you've never met him.

A.unique　　 B.strange　　 C.rare　　 D.particular