Mr. Green drove slowly on the way home until he reached the high way, ______ the speed limit was 60 miles per hour.
32. An online survey at sina.com suggested more than four in five said the present rules would not be effective _______ the rising housing prices.
31. _______ with the present situation, the local government could not find effective measures to reduce the risk of coal mine accidents.
30. Barack Obama told millions watching him that his grandmother’s influence on _______ he is and the way he views the world was significant.
29. A big earthquake hit Yushu, Qinghai province in the early morning, and if a little later, many more people _______.
28. After graduation I’d like to find a job_________I can use what I have learnt at school.