29. 不顾、不理会 ____________________　　　 30. 乍一看 ___________________　　

28. A n　　　　　　　 　is a place where young children are taken care of during the day while their parents are at work.

27. The soil can a　　　　　　　 water, so it helps to keep water from flowing away.

26. 100 years ago, mixed race marriages were f　　　　　　 　in the southern states of America.

25. Marine scientists study the r　　　　　 　　　　　(关系) between living creatures and

their habitat in the ocean.

24. The students’ ages in our class r　　　　　 　　　　　　from 16 to 18.

23. The street are all flooded and watermelons are f　　　　 　　　　　　　everywhere

22. The police a　　　　　　 　　　　　　Rosa Parks and put her into prison.

21. This world has three s　　 　　　　　　　　　(不同的) meanings.

20. Luckily, thanks to the fire fighters great help, people in the building _____­­_____ to escape the big fire.

A. managed　 　　　　 B. tried　 　　　　　　 C. succeeded　 　　 D. meant