Many people believe we will faceenvironmental disasters _________ we completely change the way we live.

Thousands of foreigners were _________to the Shanghai World Expo the day it opened.[ ]

Have you learned enough spoken English to ____ a conversation with the foreigners? [ ]

She has a lot of bad habits______.

While many Brits like nothing better than spending their Sunday cutting the grass, some are happy just to sit under the _____ of the trees and enjoy the beauty of the world.