help.

---Yes, sending him to hospital______ necessary.

A. wasn't B. hadn't been C. wouldn't be D. shouldn't be

23.______the moment they heard the starting signal given by the teacher.

A. Ran the children down the hill B. Down the hill did the children run

C. Down the hill the children ran D. Down the hill ran the children

24. More and more people go jogging in the morning, ____benefits for health arise from the fresh air rich in oxygen.

A. which B. that C. whose D. who

25.---Mr. Smith truly stands out as the best teacher and friend combination.

---Indeed! When I look back on what he did, I'm not sure whether I ___the same in his position.

A. would do B. would have done C. must have done D. could do

26.It _____to write down your goals as it is time you _______yourself to them.

A. makes no difference, commit B. makes sense, committed

C. matters a lot., are committed D. is worthwhile, commit

27.I really enjoy ______when my students ______exercising control over themselves every day.

A. that, tend to B. so, are bent on

C. it , are accustomed to D. what , are devoted to

28.Adults have become too concerned with their own personal gains to _____basic sense of principles.

A. put aside B. care about C. account for D. contribute to

29.We Chinese have been holding the _____ that human nature was good at birth.

A. opportunity B. discrimination C. belief D. consensus

30.______to lead often will result in lead poisoning with common symptoms such as muscle weakness, weight loss, stomach pain, ect.

A. To expose B. Exposing C. Being exposed D. Having exposed

31.Working and studying at the same time was no easy task, but all my efforts_____at last.Which of the following can't be used in the blank?