单选题13. A healthy life is generally thought to be ______ with fresh air, clean water, and homegrown food.

单选题9. Since she is so worried, we ______ her the truth.

单选题22. Beyond the river ______.

单选题33. David can run as ______ as your sister.

单选题42. We can ______ with people in most parts of the world by telephone.

单选题59. We moved to London ______ we could visit our friends more often.

单选题 Frankly speaking

单选题 The market is a concept

单选题6. Of more than three hundred people in the airplane that crashed last week, only five ______ miraculously.

单选题23. John's never been to New York. ______.

单选题25. ______ is not known yet.

单选题27. Let's stop for a while, ______?

单选题 People in that district ______ use oil lamps

单选题17. A sincere ______ is as valuable as gold in the world.

单选题29. Let us go to the park, ______?

单选题 He ______ to see you yesterday

单选题16. He was ______ by the police with having murdered his wife.

单选题17. The oxygen in the air we breathe mixes ______ our blood and gives us life.

单选题After the violent earthquake that shook Los Angeles in 1994, earthquake scientists had news to report: The damage and death toll could have been much worse. More than 60 people died in this earthquake. By comparison, an earthquake of similar intensity that shook America in 1988 claimed 25,000 victims. Injuries and deaths were relatively less in Los Angeles because the quake occurred at 4:31 a.m. on a holiday, when traffic was light on the citys highways. In addition, changes made to the construction codes in Los Angeles during the last 20 years have strengthened the citys buildings and highways, making them more resistant to quakes. Despite the good news, civil engineers arent resting on their successes. Pinned to their drawing boards are blueprints for improved quake-resistant buildings. The new designs should offer even greater security to cities where earthquakes often take place. In the past, making structures quake-resistant meant firm yet flexible materials, such as steel and wood, that bend without breaking. Later, people tried to lift a building off its foundation, and insert rubber and steel between the building and its foundation to reduce the impact of ground vibrations. The most recent designs give buildings brains as well as concrete and steel supports. Called smart buildings, the structures respond like living organisms to an earthquakes vibrations. When the ground shakes and the building tips forward, the computer would force the building to shift in the opposite direction. The new smart structures could be very expensive to build. However, they would save many lives and would be less likely to be damaged during earthquakes. 1. One reason why the loss of lives in the Los Angeles earthquake was comparatively low was that ______.

单选题19. Gloria is the girl ______ is eating an apple now.